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 2925-01-457-5649
NSN 4140-01-643-1899
NSN 5920-01-574-9353
NSN 7035-01-364-0286
NSN 6220-00-826-7002
NSN 6320-01-373-9355
NSN 6240-00-428-4027
NSN 6650-00-952-2754
NSN 5998-01-256-1043
NSN 6130-01-259-3009
NSN 6685-01-383-6522
NSN 5835-01-241-1090