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 5945-00-816-4169
NSN 6145-00-738-5601
NSN 5910-01-143-5324
NSN 6240-01-043-5308
NSN 2925-01-219-9471
NSN 6105-00-995-4636
NSN 5965-00-468-3071
NSN 6220-01-534-6695
NSN 5835-01-250-2939
NSN 5945-01-378-1372
NSN 5910-01-160-4355
NSN 5990-01-048-1056