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 5998-01-109-6347
NSN 5855-01-433-3197
NSN 5965-01-659-1970
NSN 2925-00-290-7052
NSN 2925-01-317-6973
NSN 6220-01-079-7772
NSN 6135-00-593-6831
NSN 6110-01-418-2578
NSN 5965-01-617-4523
NSN 6645-01-142-2416
NSN 5999-01-490-5835
NSN 6650-01-545-8851