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 5920-01-494-9401
NSN 6320-01-056-1164
NSN 6685-01-659-7929
NSN 2925-01-197-7864
NSN 6620-01-200-8176
NSN 5965-00-044-6554
NSN 6220-01-571-0951
NSN 5910-01-467-6110
NSN 6240-00-201-1200
NSN 6650-01-107-7553
NSN 6320-01-506-9439
NSN 5990-00-997-8945