Fire proof: 2000 + or - 150 for 15 minutes
A small cylindrical, circular-like, nonmetallic item whose outer curved surface has a circumferential groove(s) to enable it to be self-retained when inserted in a hole.
NSN 6145-01-394-3122
NSN 6645-01-282-3624
NSN 5960-01-597-9591
NSN 5925-00-866-9604
NSN 6645-00-155-2398
NSN 5975-01-235-0954
NSN 5950-00-642-3578
NSN 6135-01-417-6539
NSN 5855-01-207-5616
NSN 6320-01-166-3602
NSN 5930-01-601-9032
NSN 5855-01-312-5160