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 4140-01-249-3449
NSN 5990-00-568-4940
NSN 6135-01-260-1100
NSN 6650-01-364-1313
NSN 5975-00-008-2739
NSN 6620-01-029-4777
NSN 5910-01-430-7235
NSN 6105-00-445-6579
NSN 5960-00-269-4762
NSN 7035-01-622-9184
NSN 5990-01-386-3040
NSN 4140-00-375-6021