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 4140-00-635-9195
NSN 2925-01-200-8757
NSN 6220-01-432-7629
NSN 6240-00-372-4841
NSN 6320-00-224-3538
NSN 6650-00-054-4721
NSN 5910-01-383-1612
NSN 5855-00-479-9819
NSN 5998-00-929-9652
NSN 6610-01-224-7247
NSN 6610-01-417-3011
NSN 6320-01-456-6300