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 5945-01-381-5287
NSN 5855-01-100-3272
NSN 5925-01-159-2014
NSN 5915-00-351-7355
NSN 5975-01-078-0332
NSN 2925-01-177-1598
NSN 5855-00-221-9435
NSN 5990-00-263-1289
NSN 6620-00-773-0720
NSN 5920-01-472-3583
NSN 6685-01-262-6308
NSN 5965-01-187-8574