Armacon ARM-263 1/2-28 Crush Washer for AR-15
- $19
In short: Armacon ARM-263 1/2-28 Crush Washer for AR-15 connects 1/2-28 thread and a compatible shoulder to compressible timing and retention interface for a compatible 1/2-28 component.
Compatibility matrix
| Documented hosts | AR-15 configurations with a verified 1/2-28 threaded interface |
|---|---|
| Required interface | 1/2-28 thread and a compatible shoulder |
| Resulting interface | compressible timing and retention interface for a compatible 1/2-28 component |
| Do not select for | different thread sizes, damaged shoulders and interfaces that do not use a crush washer |
Selection checkpoint: Confirm the exact host, configuration and interface before ordering. Similar dimensions do not confirm compatibility.
Technical specifications
| Part number | ARM-263 |
|---|---|
| Construction | Carbonitrided steel |
| Documented specification | 1/2-28 crush washer with reverse chamfer |
| Packaging | Zip-lock package |
Installation
Confirm the 1/2-28 interface and component instructions, orient the washer correctly and tighten the compatible component to its required position.
What's in the Box
| ARM-263 crush washer ×1 | Manufacturer package |
Frequently asked questions
Which hosts are documented?
AR-15 configurations with a verified 1/2-28 threaded interface.
Which interface is required?
1/2-28 thread and a compatible shoulder.
What interface does it provide?
compressible timing and retention interface for a compatible 1/2-28 component.
What should be checked before ordering?
Confirm the exact host, configuration and interface rather than relying on visual similarity.
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