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 5915-01-512-8851
NSN 5998-01-276-8183
NSN 5996-01-380-0426
NSN 6150-01-147-2845
NSN 5985-00-934-1289
NSN 5960-00-708-7131
NSN 6320-00-779-5923
NSN 6105-01-330-8211
NSN 5930-00-004-0269
NSN 6320-01-088-1109
NSN 6130-01-284-0269
NSN 6610-00-202-5481