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 5999-00-853-2487
NSN 5999-01-496-7952
NSN 6110-01-416-6743
NSN 4140-00-099-9205
NSN 6650-00-984-5340
NSN 5930-01-193-7364
NSN 6685-00-957-0716
NSN 7035-00-470-4977
NSN 5925-01-463-8594
NSN 5895-00-181-0564
NSN 6105-01-381-2496
NSN 4140-01-577-4582