A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.
NSN 4140-00-422-5571
NSN 5998-00-040-9169
NSN 5996-01-430-4605
NSN 6320-00-261-9136
NSN 6145-01-395-2136
NSN 6240-01-523-8401
NSN 2925-01-545-2717
NSN 5925-01-257-3017
NSN 6135-00-945-0015
NSN 6685-00-005-1288
NSN 5920-00-356-4641
NSN 5990-01-416-1017