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 6105-00-035-8809
NSN 5990-01-530-8452
NSN 5975-01-277-2699
NSN 6135-01-142-6456
NSN 5998-01-296-2785
NSN 5895-01-102-8407
NSN 5915-01-024-8200
NSN 6645-01-258-0370
NSN 5920-01-247-7424
NSN 2925-01-649-7543
NSN 5930-00-881-0667
NSN 6650-01-297-4376