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 6135-00-284-1406
NSN 5996-00-117-4337
NSN 6220-01-014-5351
NSN 7035-00-919-3381
NSN 6150-00-100-4373
NSN 5835-00-227-7909
NSN 5935-00-119-9061
NSN 5935-01-168-8183
NSN 5960-01-454-7064
NSN 5905-01-110-8808
NSN 5935-01-578-7012
NSN 5998-01-510-9738