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 4140-00-427-6638
NSN 6645-00-485-1440
NSN 6685-01-117-9856
NSN 5935-01-190-7314
NSN 6320-00-116-3658
NSN 4140-01-408-5132
NSN 6220-01-089-8839
NSN 6110-00-401-3646
NSN 5930-01-373-9431
NSN 4140-01-261-7953
NSN 5975-01-557-8639
NSN 5910-00-482-7851