Details
Omega Mfg 5/8 Inch Stainless Steel Crush Washer for 5/8x24 Thread Pitch
The Omega Mfg 5/8 Inch Stainless Steel Crush Washer secures muzzle devices on barrels with 5/8x24 thread pitch. This crush washer compresses during installation to create a tight seal between the barrel shoulder and muzzle device, which prevents gas leaks and maintains proper timing alignment. The stainless steel construction resists corrosion from exposure to carbon buildup, cleaning solvents, and environmental moisture. The 5/8x24 thread pitch is the standard size for 308 Winchester and 7.62x51mm NATO barrels, making this washer compatible with AR10, LR308, and other large frame AR platforms.
Key Features
- 5/8x24 thread pitch for 308 and 7.62 caliber barrels
- Stainless steel construction for corrosion resistance
- Compresses during installation for tight seal
- Prevents gas leaks between barrel and muzzle device
- Maintains proper muzzle device timing and alignment
- Compatible with muzzle brakes, flash hiders, and compensators
- Single use component for optimal sealing
Perfect For
- Installing muzzle devices on 308 and 7.62 rifles
- AR10 and LR308 platform builds
- Ensuring proper muzzle device timing
- Replacing worn or damaged crush washers
Stainless Steel Corrosion Resistance
The stainless steel construction resists rust and oxidation from carbon buildup, cleaning solvents, and environmental exposure. This material maintains its integrity over time without corroding or degrading, which keeps the seal between the barrel and muzzle device intact. Stainless steel also withstands the heat generated during firing without losing strength or deforming.
Compression Seal and Gas Prevention
The crush washer compresses when the muzzle device is torqued down against the barrel shoulder, creating a tight seal that prevents high pressure gases from escaping at the threads. This seal keeps gas flowing forward through the muzzle device rather than leaking backward, which maintains consistent muzzle device performance. The compression also locks the muzzle device in position and prevents it from backing off during firing.
5/8x24 Thread Pitch Standard
The 5/8x24 thread pitch is the industry standard for 308 Winchester, 7.62x51mm NATO, 6.5 Creedmoor, and other large caliber AR platform barrels. This thread pitch provides enough material engagement to handle the recoil and pressure generated by these calibers while allowing proper muzzle device installation. Verify your barrel threads match 5/8x24 before ordering, as other calibers use different thread pitches.
Single Use Design
Crush washers are designed to compress once during installation, which means they cannot be reused. Once compressed, the washer loses its ability to create a proper seal and maintain correct timing if removed and reinstalled. Use a new crush washer each time you install or adjust a muzzle device to ensure proper sealing and alignment.
Follow safe handling and manufacturer instructions. Ensure compliance with all applicable laws. Crush washers are single use components, use a new washer for each installation. Verify 5/8x24 thread pitch compatibility with your barrel and muzzle device before installation. Torque muzzle device to manufacturer specifications for secure attachment.
