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 6620-00-375-0393
NSN 6130-01-651-3332
NSN 5996-01-046-4544
NSN 6610-01-487-8307
NSN 5985-00-879-3168
NSN 6620-00-104-6937
NSN 6685-00-239-5700
NSN 5965-00-246-2182
NSN 6650-00-549-5672
NSN 6145-01-465-1482
NSN 2925-01-554-3650
NSN 6320-01-478-9351