Crush Washer for AK LH 14x1 - Does it exist?

[TheWabbit]

All my other AKs have a FSB with the pin to hold the muzzle brake in place but on a VEPR 02, the FSB is integrated on the gas block. I guess I have to use a crush washer but I know nothing about them. They appear to be listed by caliber and some with threading pattern.

Does someone actually make a 7.62 LH 14x1 crush washer or can I use one for a M14 (.308) instead?

 

[chezuki]

A crush washer came with my TAT and die from Carolina Shooter's Supply. I can't see anything that would be thread or direction specific. When you tighten the muzzle break down it flattens out the crush washer which acts kind of as a spring to keep tension on the break so it doesn't work it's way loose.

I've seen people just use a split washer or even a rubber washer or oring successfully for the same purpose and they can be found at any hardware store for pennies. They even hold proper index for a slant break.

 

[engineerpower]

A crush washer is simply a washer that squishes more than your muzzle device or the barrel shoulder, so you get a good torque without deforming either. It also allows you to time your device properly. Just use a lock washer for a quick fix, or find an appropriately sized copper washer.

 

[Clay]

the crush washers are sized for the threads and nothing more. I've seen M14 crush washers out there.

 

[N_K_1984]

You could always use shims. I shimmed and timed the slant brake on my SA93 since there is no detent pin on the FSB. I shim all my muzzle devices on my ARs, so it came natural to shim my AK when installed the slant brake.

 

[Cerberus]

M14 doesn't use a crush washer. At least not the issue style.

 

[chezuki]

M14 doesn't use a crush washer. At least not the issue style.

The "M14" is referring to the M14x1.0 LH threads on an AK, not an M14 rifle.

 

[TheWabbit]

See, learning stuff every day.

 

[Cerberus]

The "M14" is referring to the M14x1.0 LH threads on an AK, not an M14 rifle.

The Wabbit wrote "or can I use one for a M14 (.308) instead?" M14 (.308) does not seem in any shape, form or function to imply an M14x1.0LH thread.

OP, if you can find a crush washer for a 9/16 thread it should fork just fine. A 5/8 thread would also, but it would be a very loose fit. What size threads do the .308 ARs use?

 

[TheWabbit]

The M14 confusion was my fault. I thought it was for the M14 rifle.

I picked up a couple of caps already from a guy on AKFiles to cover the pin holes on the end of the VEPR 54.

 

[4PWW9]

Damage Industries has 7.62 Crush Washers here:
AR15/M16 7.62 Crush Washer | Damage Industries