A soft metal or nonmetal sleeve, designed to mate with a pin-rivet. it may include an external wrenching facility which breaks off at a perdetermined torque to form a head.
NSN 5985-01-415-1246
NSN 6130-00-862-5516
NSN 5935-00-918-3271
NSN 6130-00-088-7263
NSN 6320-00-908-6841
NSN 5990-01-042-1984
NSN 6220-01-170-5069
NSN 5965-00-393-1294
NSN 5905-00-555-1899
NSN 5930-01-307-1383
NSN 5925-00-231-3660
NSN 5975-01-069-4689