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 6240-01-073-6471
NSN 5905-01-456-4768
NSN 6145-00-504-5221
NSN 6320-01-495-0512
NSN 2925-00-139-8309
NSN 6110-01-258-1291
NSN 6110-01-018-1378
NSN 5996-00-369-5299
NSN 5935-01-492-4227
NSN 6220-00-005-5551
NSN 6220-01-411-6542
NSN 5855-01-147-6024