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 5999-00-993-1171
NSN 6220-00-364-1605
NSN 6105-01-523-7814
NSN 6130-00-390-5758
NSN 6135-01-346-0851
NSN 2925-01-127-0167
NSN 5975-00-948-6663
NSN 4140-00-947-3918
NSN 5835-01-383-1313
NSN 6135-00-168-9352
NSN 6685-01-304-3865
NSN 6645-01-207-5065