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 6645-01-643-7151
NSN 6130-01-237-1164
NSN 5950-01-053-4103
NSN 6145-00-702-0057
NSN 6110-00-213-2388
NSN 6685-01-532-8975
NSN 6220-01-023-5596
NSN 5999-01-256-2398
NSN 6610-01-240-6629
NSN 5975-01-627-2560
NSN 6650-00-542-9042
NSN 5920-00-406-9081