Material specification is qq-c-390 or astm b81
A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see push on nut. It is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. See also clip, retaining and pin, lock. Excludes ring, connecting, round.
Classification: Press-fasteners, snap-fasteners & press-studs & parts therefor
NSN 6685-00-906-6434
NSN 5915-01-553-2327
NSN 5950-00-338-4404
NSN 6320-01-364-1732
NSN 5905-01-316-4337
NSN 6645-01-030-5288
NSN 5985-00-113-3417
NSN 5895-00-585-0039
NSN 6130-01-551-0717
NSN 5990-01-563-1554
NSN 6145-00-228-0742
NSN 6610-00-602-2025