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 6220-00-137-1894
NSN 5998-01-445-6943
NSN 5920-00-185-5801
NSN 5835-01-138-8622
NSN 6645-01-068-3042
NSN 5996-01-462-1631
NSN 6645-00-200-2324
NSN 6610-01-437-2506
NSN 5999-01-655-6337
NSN 6320-01-406-6098
NSN 6220-01-106-0828
NSN 6145-01-079-1475