OPEN Flashlight O-Ring kits- EPDM and Silicone Sets now available

[RocketTomato]

11-1-09 Update:
12 more Silicone kits available!
EPDM kits are also still available.


4.8.09

O-Ring Size chart:
See post #3 for more details.

-013: [EPDM only]- Muyshondt
-014: [EPDM & Si]-
-015: [EPDM & Si]- Surefire, Aleph, McGizmo, Arc
-016: [EPDM & Si]- Surefire, Aleph, McGizmo, Arc
-017: [EPDM & Si]- Surefire, Aleph, McGizmo, Arc
-018: [EPDM & Si]- Surefire, Aleph
-019: [EPDM & Si]- Aleph, McGizmo, Arc
-020: [EPDM & Si]-
-021: [EPDM & Si]-
-022: [EPDM & Si]- Surefire
-023: [EPDM & Si]- Aleph, Longbow PR heads, McLux PR, PR-T
-024: [EPDM only]-
-025: [EPDM only]-
-119: [EPDM & Si]- Surefire

You can try +/- 1 standard size for a tighter/looser fit.


Now offering a limited number of Silicone sets in addition to the EPDM sets. The Silicone sets are more expensive due to the more expensive material and there are less sizes included. The Silicone kits will include 11 sizes: -014 to -023 and -119

6-5-09
Unfortunately I had to increase the prices a little since Paypal changed their fee structure. Cash and Credit Card transactions now cost the same in PP fees. The new prices are:

Silicone available!

Silicone Kit Cash Payment Details Summary:
1 Kit= 55 O-rings (11 sizes x 5 of each size)
Sizes: -014, -015, -016, -017, -018, -019, -020, -021, -022, -023, -119

For Continental US, AK, HI and PR, prices will be:
$12.50 shipped for 1 kit
$22.00 shipped for 2 kits

For International orders, prices will be:
$13.75 shipped for 1 kit of 65 o-rings
$24.00 shipped for 2 kits

Silicone kits available!




EPDM Kit Cash Payment Details Summary:
1 Kit of 70 O-rings (14 sizes x 5 of each size)
Sizes: -013, -014, -015, -016, -017, -018, -019, -020, -021, -022, -023, -024, -025, -119

For Continental US, AK, HI and PR, prices will be:
$7.50 shipped for 1 kit
$11.50 shipped for 2 kits
$16.75 shipped for 3 kits

For International orders, prices will be:
$8.50 shipped for 1 kit
$13.75 shipped for 2 kits
$20.00 shipped for 3 kits


Cash and Credit Card now cost the same since Paypal changed the way they charge fees. Please include your order information and CPF name in the Paypal comment field. Thank you!

Paypal: CCRocketTomato@gmail.com


Please include your order information and CPF name in the Paypal comment field.

Standard Disclaimer: Seller assumes no responsibility for lost or damaged shipments. Use of o-rings is at your own risk.

Any questions, please PM me or post here.


A picture of the EPDM Kits:
Sizes -013 to -020 on the bottom row.
Sizes -021 to -025 and -119 on the top row.
The assembled kit is pictured above the two rows.




3.22.09
I got the majority of the o-rings in on Thursday. One size is back-ordered until tomorrow. I also ordered a 14th size, the #119 which should fit the Surefire body heads for the C, P, U, K and M series.

3.16.09
The group buy is officially on! I ordered the EPDM o-rings today and they will hopefully arrive on Wed or Thurs.

There has also been some interest in a Silicone version of the kit. Please post here if you would be interested. Note that the price of the silicone o-rings is substantially greater so the Kit will be priced higher and/or contain less o-rings.


Each EPDM kit will include 5 of each size from #013 (ID=7/16") to #025 (ID= 1 and 3/16") for a total of 65 O-rings. The width of each is 1/16".

Each size would be individually bagged in a little ziploc style bag. ( I might regret committing to this part. ) the kits will be shipped first class in a bubble lined envelope.

-------------------------------------------------------------------------


3.2.09

I have been looking around for some replacement O-rings and all the places either have a very large number at a low price, or they nickel and dime you to death. So I was thinking of setting up a group buy if there is enough interest.

Most O-rings are made of Buna-N but I think EPDM would make a better choice.

Here is a comparison between the two:

Buna-N: Nitrile Rubber
-20 to 212 F
-30 to 100 C
Good compressibility
Advantage- cheap, widely used
Disadvantage- poor resistance to sunlight, ozone and weathering

EPDM: Ethylene Propylene
-40 to 212 F
-40 to 100 C
Good compressibility
Advantage- water, steam, ozone and weather resistant
Disadvantage- Not recommended for use with use synthetic lubricants

Silicone:
-80 to 400 F
-62 to 204 C
Typically used in static seals, not recommended for dynamic seals.
Advantage- Increased temperature range. Resistant to sun damage, ozone, fungal and biological attack
Disadvantage- Poor tear and abrasion strength.


Aside from materials, the other choice is sizes.

I think the range from #013 (ID=7/16") to #025 (ID= 1 and 3/16") would encompass a large range of different flashlights.


Each kit would include 5 of each size from #013 to #025 for a total of 65 O-rings. Each size would be individually bagged in a little ziploc style bag. ( I might regret committing to this part. ) the kits will be shipped first class in a bubble lined envelope.

Depending on how large the group buy is and how much the 65 O-rings would weigh, the price would probably be around $6-$9 shipped for a kit. International shipping would add about $1-$3 depending entirely on the package weight.

Final pricing will depend on the number of sizes included in the kit, the size of the group buy and the O-ring material chosen.

The material and the included sizes are entirely up in the air, so comments and suggestions are appreciated.

Lastly, does anyone know of a listing of O-rings sizes used in the more common lights?


One final important note, please only commit if you are willing to wait as long as a few weeks to a month and are truly interested once a final price is set and all the details are worked out. You basically will have time to change your mind up until the point before I place the O-ring order. Until then, feel free to change your mind. No pre-pays will be required or expected, just your word.

[RocketTomato]

Confirmed EPDM GB List:
Post #1- EPDM- RocketTomato- 2 kits
Post #6- EPDM- Edwood- 3 kits
Post #7- EPDM- Nfetterly- 1 kit
Post #8- EPDM- scottaw- 2 kits
Post #14- EPDM- maxspeeds- 2 kits
Post #18- EPDM- Norm- 1 kit
Post #19- EPDM- nein166- 2 kits
Post #21- EPDM- gchand- 1 kit
Post #22- EPDM- Nakahoshi- 2 kits
Post #32- EPDM- bagman- 1 kit
post #33- EPDM- d1dd1- 2 kits
post #41- EPDM- vegasf6- 2 kits
post #46- EPDM- gswitter- 2 kits
post #47- EPDM- Nake- 2 kits
post #54- EPDM- cmacclel- 2 kits
post #60- EPDM- proline- 3 kits
post #71- EPDM- lightknot- 1 kit
post #103- EPDM- pika- 1 kit

CPFname in blue indicates payment received.
CPFname in green indicates item shipped.



Confirmed Silicone Kit GB List:
Post #1- Silicone- RocketTomato- 2 kits
Post #26- Silicone- Nakahoshi- 1 kit
post #30- Silicone- csshih- 1 kit
post #46- Silicone- gswitter- 2 kits
post #56- Silicone- Norm- 1 kit
post #57- Silicone- Nfetterly- 1 kit
post #60- Silicone- Proline- 2 kitS
post #65- Silicone- Edwood- 2 kits
post #66- Silicone- Nake- 1 kit
post #82- Silicone- Th232- 1 kit
PM- Silicone- bagman- 1 kit
PM- Silicone- deadlylover- 1 kit


Combo:
post #62- 1dash1- 1 EPDM- 1 Silicone
post #64- DonShock- 2 EPDM- 1 Silicone
PM- Tino_ale- 1 EPDM- 1 Silicone
e-mail- London Lad- 2 EPDM- 2 Silicone
post #98- nailbender- 3 EPDM- 1 Silicone
post #99- herrgurka- 1 EPDM- 1 Silicone
post #102- onedagored- 1 EPDM- 1 Silicone
post #107- shankus- 2 EPDM- 1 Silicone


NO Silicone kit left
25 Silicone kits taken

CPFname in blue indicates payment received.
CPFname in green indicates item shipped.

[RocketTomato]

I am trying to get a small database started which lists the o-ring sizes used in different flashlights.

Disclaimer: These are measurements I made on lights I own or from info I found online, so they may be incorrect and no guarantee is given as to their accuracy.

This listing is just for reference and these sizes are not necessarily included in the kits described above.


Production Lights using Imperial Standard O-Rings:
Sizes are given in standard AS568A Dash Number

Surefire 6P/9P/C2/C3/- body head: -119
Surefire 6P/9P/C2/C3- body tail: -017 or -018
These 2 sizes should be usable on a large number of surefire lights (P,U,M,K,C series)

Surefire G2- body head: -022
Surefire G2- body tail: -017

Surefire E1B- body head: -017 or -018
Surefire E1B- body tail: -015

Arc 6 head: -017 (silicone)
Arc 6 piston: -016 or -015 (silicone)
Arc 6 bezel/window: =019 (EPDM)

Mushondt Aeon body head: -013


Production Lights using Metric Standard O-rings:
Sizes are given as Inner diameter x Cross Sectional Width

Arc Ti AAA- Window Seal: 6 mm x 1 mm
Arc Ti AAA- Window Retention: 7.5 mm x 1 mm
Arc Ti AAA- LED Centering O-ring: -006
Arc Ti AAA- Head Seal: 9 mm x 1.5 mm

Ra Clicky- Body head: 20.5 mm x 1.5 mm
Ra Clicky- Bezel: 20.5 mm x 1.5 mm
Ra Clicky- window: 19 mm x 1.0 mm

Ra Twisty- Body head: 20.5 mm x 1.5 mm
Ra Twisty- Bezel: 20.5 mm x 1.5 mm
Ra Twisty- window: 19 mm x 1.0 mm

Novatac 120P- head: 20.5 mm x 1.5 mm
Novatac 120P- tail: 20.5 mm x 1.5 mm

Lummi Raw NS/Al/Ti- ??: 16 mm x 1 mm
Lummi Wee NS/Ti- ??: 11 mm x 1 mm
Lummi Wee NS/Ti- switch: 6 mm x 1 mm

Nitecore D10- head: 13 mm x 1.5 mm
Nitecore D10- piston: 13 mm x 1.5 mm

Nitecore NDI- head: 15 mm x 1.5 mm
Nitecore NDI- tail: 15 mm x 1.5 mm

Fenix L0D- head: 9.5 mm x 1.0 mm
Fenix L0D- body head: 10.0 mm x 1.0 mm

Fenix E01: head- 9.5 mm x 1.5 mm


Custom Lights:
McGizmo Ti PD-S or LS20 head: -017 (silicone)
McGizmo Ti PD-S or LS20 piston: -016 or -015 (silicone)
McGizmo Ti PD-S or LS20 bezel/window: -019 (EPDM)

McGizmo Ti Haiku Window Retention: -018 (EPDM)
McGizmo Ti Haiku Window Seal: -017 (EPDM)
McGizmo Ti Haiku, Sundrop and Ti McClickie Pak body head: -017
McGizmo Ti Haiku, Sundrop and Ti McClickie Pak Switch: -113 (EPDM) to retain the boot


McGizmo Aleph McClickie- body head: -017
The switch assembly can be used with a rubber boot or a silicone boot
If you use the silicone boot, you only need one o-ring
McGizmo Aleph McClickie- Switch: -113 (EPDM) to retain the boot
If you use the rubber boot, you need a second o-ring
McGizmo Aleph McClickie- Switch: -016 (silicone) to center Rubber boot
McGizmo Aleph McClickie- Mule head: -017 (EPDM) under the window
McGizmo Aleph McClickie- Mule head: -018 (EPDM) on top of the window

Ti Sapphire AAA- Window Seal: 6 mm x 1 mm (EPDM??)
Ti Sapphire AAA- Window Retention: 7.5 mm x 1 mm (EPDM??)
Ti Sapphire AAA- LED Centering O-ring: -006 (EPDM??)
Ti Sapphire AAA- Head Seal: 9 mm x 1.5 mm (Silicone)

Following measurements from Donn_ (used with permission)
Aleph- tube switch end: -015
Aleph- tube head end: -015, -016, -017
Aleph Mule- head inner: -017
Aleph Mule- head outer: -018
Aleph, McLux PR, PR-T, Longbow PR- heads: -023
Aleph 2 and Aleph 19- head: -019
Aleph 3- head: 36 mm x 3 mm



Sigman's "Glo-Rings"- (used with permission)
I ordered a set of glo-rings and converted these to standard O-Ring sizes. Note that the included glo-ring sizes that Sigman orders can change from batch to batch

- 1" (25mm) [#214]: SF KL5 & U2 (bezel), Pila GL3 & GL4, & replace bezel o-rings between reflector & window (McLux III-PD, Aleph 2, Aleph 19)

- 7/8"(22mm) [#019]: fits the outer ring on McGizmo's MULE, what else?, behind the lens of G2z, G2, 6P etc.

- 3/4" (19mm) [#018]: McLux, SF E-series, SF U2 (body), SF C3, QIII, Arc LS, Spy005, replace bezel o-ring (HDS, Arc4, 2AA minimag)

- 5/8" (16mm) [#016]: tighter fit for lights 1" in diameter (listed above)

- 1/2" (12mm) [#014]: Would appreciate any info on what these fit!

- 7/16" (11mm) [#013]: CR2 and AA lights, fill gap under PD & HDS bezel rings, HDS tail cap groove

- 0g (8mm) [#011]: AAA-sized lights, around switch button of the L1P, fit tightly over AA lights as well (Fenix L1 & L2)

- 4g (5mm) [5mm x 1mm]: fit on para cord for lanyards, 2 fill the gap on a Solitaire with SMJLED upgrade.

- 6g (4mm) [4mm x 1mm]: fit on top of 5mm LED's for GID mods

- 10g(2.5mm) [2.5mm x 1.5mm]: fit on top of 3mm LED's for GID mods

[DonShock]

The ID sizes and material are not the problem I encounter when trying to get o-rings for my lights. It's usually o-ring thickness that's an issue. Most commonly available rings are too thick at the larger diameters found on lights.

[RocketTomato]

Originally Posted by DonShock

The ID sizes and material are not the problem I encounter when trying to get o-rings for my lights. It's usually o-ring thickness that's an issue. Most commonly available rings are too thick at the larger diameters found on lights.

The #0XX o-rings are nominally 1/16" in thickness which works out to 0.0625" or 1.5875 mm no matter what the inner diameter is.

If thinner ones are needed, there are metric size O-rings also available which are 1 mm (0.0394") in thickness. However, the metric O-rings are harder to find in the US, especially at reasonable prices.

Is there a specific light you have had particular trouble with?

[Edwood]

I'd be interested in EDPM O-ring sets.

Krytox is technically synthetic, but should be safe for use with EDPM.

[nfetterly]

RocketTomato,

From "Sigman"'s posting for GITD O-rings here is a list of o-ring sizes for various lights.

- 1" (25mm): SF KL5 & U2 (bezel), Pila GL3 & GL4, & replace bezel o-rings between reflector & window (McLux III-PD, Aleph 2, Aleph 19)

- 7/8"(22mm): fits the outer ring on McGizmo's MULE, what else?, behind the lens of G2z, G2, 6P etc.

- 3/4" (19mm): McLux, SF E-series, SF U2 (body), SF C3, QIII, Arc LS, Spy005, replace bezel o-ring (HDS, Arc4, 2AA minimag)

- 5/8" (16mm): tighter fit for lights 1" in diameter (listed above)

- 1/2" (12mm): Would appreciate any info on what these fit!

- 7/16" (11mm): CR2 and AA lights, fill gap under PD & HDS bezel rings, HDS tail cap groove

- 0g (8mm): AAA-sized lights, around switch button of the L1P, fit tightly over AA lights as well (Fenix L1 & L2)

- 4g (5mm): fit on para cord for lanyards, 2 fill the gap on a Solitaire with SMJLED upgrade.

- 6g (4mm): fit on top of 5mm LED's for GID mods

- 10g(2.5mm): fit on top of 3mm LED's for GID mods

Neale

Put me in for a set - EPDM preference

[scottaw]

I'd like a set in Buta-N

Lights I wans to use them on

Novatac's
SF L1/6P/G2
Random Headlamps

[65535]

U2/Kroma heads use the same size O-ring as C series (P,U,M,K,C) tailcap/body joints.

[RocketTomato]

Originally Posted by nfetterly

RocketTomato,

From "Sigman"'s posting for GITD O-rings here is a list of o-ring sizes for various lights.

- 1" (25mm): SF KL5 & U2 (bezel), Pila GL3 & GL4, & replace bezel o-rings between reflector & window (McLux III-PD, Aleph 2, Aleph 19)

- 7/8"(22mm): fits the outer ring on McGizmo's MULE, what else?, behind the lens of G2z, G2, 6P etc.

- 3/4" (19mm): McLux, SF E-series, SF U2 (body), SF C3, QIII, Arc LS, Spy005, replace bezel o-ring (HDS, Arc4, 2AA minimag)

- 5/8" (16mm): tighter fit for lights 1" in diameter (listed above)

- 1/2" (12mm): Would appreciate any info on what these fit!

- 7/16" (11mm): CR2 and AA lights, fill gap under PD & HDS bezel rings, HDS tail cap groove

- 0g (8mm): AAA-sized lights, around switch button of the L1P, fit tightly over AA lights as well (Fenix L1 & L2)

- 4g (5mm): fit on para cord for lanyards, 2 fill the gap on a Solitaire with SMJLED upgrade.

- 6g (4mm): fit on top of 5mm LED's for GID mods

- 10g(2.5mm): fit on top of 3mm LED's for GID mods

Neale

Put me in for a set - EPDM preference

Thanks for the info Neale.

[RocketTomato]

Originally Posted by Edwood

I'd be interested in EDPM O-ring sets.

Krytox is technically synthetic, but should be safe for use with EDPM.

Correct, any silicone based oil/grease or fluorinated oil/grease (like Krytox) will be safe on EPDM.

[Edwood]

Anyone know the O-Ring sizes for Nitecore EX10? Particularly the head and piston ones?

The stock ones Nitecore uses are utter crap. They are ideal for better EDPM replacements.

-Ed

[RocketTomato]

Originally Posted by Edwood

Anyone know the O-Ring sizes for Nitecore EX10? Particularly the head and piston ones?

The stock ones Nitecore uses are utter crap. They are ideal for better EDPM replacements.

-Ed

I have an EX10 I will measure later tonight and post the results above in post #3. Unfortunately, it is most likely a metric size o-ring so one of the standard size o-rings, might not make a suitable replacement.

[maxspeeds]

Orlando,

Count me in for 1 EPDM set (possibly 2).
As a side note, are the EPDM o-rings orange/red in color?

Thanks!
Joel

[RocketTomato]

Originally Posted by maxspeeds

Orlando,

Count me in for 1 EPDM set (possibly 2).
As a side note, are the EPDM o-rings orange/red in color?

Thanks!
Joel

OK, I got you down for 1 maybe 2 sets.

The EPDM o-rings are typically black. The orange/red ones are typically silicone. That being said, any o-ring in any material can pretty much be made in any color.

[maxspeeds]

Originally Posted by RocketTomato

OK, I got you down for 1 maybe 2 sets.

The EPDM o-rings are typically black. The orange/red ones are typically silicone. That being said, any o-ring in any material can pretty much be made in any color.

Thanks! What are the advantages to silicone? It seems Don (McGizmo) likes to use those for the piston o-rings and o-rings between the body and head.

[RocketTomato]

Originally Posted by maxspeeds

Thanks! What are the advantages to silicone? It seems Don (McGizmo) likes to use those for the piston o-rings and o-rings between the body and head.

Silicone:
-80 to 400 F
-62 to 204 C
Typically used in static seals, not recommended for dynamic seals.
Advantage- Increased temperature range. Resistant to sun damage, ozone, fungal and biological attack
Disadvantage- Poor tear and abrasion strength.

The main of advantage of silicone, is the large temperature range. However, they are more prone to tearing and abrading and are typically not used for dynamic seals.

[Norm]

I'd be interested.
Norm

[nein166]

Nice Price for the lot of them
I'm down for a Pack of EPDM

FWIW I have a few red silicone o-rings and they need replacing
My GITD o-rings are holding up better but they are silicone too

[RocketTomato]

Norm and Nein166 added to the list.

I checked pricing for a smallish order and it looks like it will be $7.00 shipped (US) per kit. 2 kits would be $11.00 shipped (US).

International, it will be $8.00 shipped for 1 kit and $13.00 shipped for 2.

Once I get everyones approval and I get a few more people interested, I will go ahead and place the order.

[gchand]

Hi RocketTomato,

I've been following this thread with interest, and am interested in a couple of kits of either EPDM (preferred) or Buta-N, whichever the common vote decides.

Many thanks for your efforts running this!

George

[nakahoshi]

This is perfect, i would be in for 2 kits, whichever style is chosen.
-Bobby


Any chance for Red Orings?

[scottaw]

Can I use nanolube with epdm? That's really the only reason i voted buna, if it's safe i could care less. Can i skip all the other sizes and get a bunch of novatac and SF sized ones?

[maxspeeds]

Originally Posted by RocketTomato

Silicone:
-80 to 400 F
-62 to 204 C
Typically used in static seals, not recommended for dynamic seals.
Advantage- Increased temperature range. Resistant to sun damage, ozone, fungal and biological attack
Disadvantage- Poor tear and abrasion strength.

The main of advantage of silicone, is the large temperature range. However, they are more prone to tearing and abraiding and are typically not used for dynamic seals.

Thanks for the info! EPDM sounds like the best for my flashlight uses. You can put me down for a definite 2

[RocketTomato]

Originally Posted by nakahoshi

This is perfect, i would be in for 2 kits, whichever style is chosen.
-Bobby

Any chance for Red Orings?

Hi Bobby. Do you mean Silicone o-rings? They are more expensive then the EPDM o-rings. I will check on pricing. If there is enough interest, I could offer those also.

Looks like there is enough interest in the EPDM sets that I will place the order soon.

[nakahoshi]

Originally Posted by RocketTomato

Hi Bobby. Do you mean Silicone o-rings? They are more expensive then the EPDM o-rings. I will check on pricing. If there is enough interest, I could offer those also.

Looks like there is enough interest in the EPDM sets that I will place the order soon.

Not sure about the material, I think it is Silicone. They are the same ones you see on McGizmo Lights. Would love to purchase a set of those as well. PM replied

-Bobby

[maxspeeds]

Rocket, If you do a groupbuy with silicone o-rings, I'll be in for 1, maybe 2

[scottaw]

did we come up with any 20.5 mm x 1.5 mm? I'll still buy at least 2...

[Norm]

Thanks
Norm

[csshih]

Originally Posted by RocketTomato

Hi Bobby. Do you mean Silicone o-rings? They are more expensive then the EPDM o-rings. I will check on pricing. If there is enough interest, I could offer those also.

Looks like there is enough interest in the EPDM sets that I will place the order soon.

I'd me in for those red orings, too.