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 5990-01-052-1987
NSN 5985-01-520-3113
NSN 5999-01-227-7062
NSN 6130-00-803-4580
NSN 5945-01-113-7250
NSN 5965-01-119-8237
NSN 5910-01-223-4035
NSN 5905-00-482-0585
NSN 6110-01-162-7200
NSN 6150-01-411-6289
NSN 5975-01-519-2519
NSN 6650-00-279-5741