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 6685-01-326-6377
NSN 6610-00-776-3235
NSN 5998-01-360-0048
NSN 5915-00-375-5000
NSN 6105-01-643-1465
NSN 6110-00-974-2046
NSN 6145-01-524-8495
NSN 6145-01-401-3713
NSN 5985-01-512-1867
NSN 6135-01-586-5018
NSN 6650-00-054-4721
NSN 6650-01-141-5999