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 4140-00-336-0275
NSN 6130-00-201-6600
NSN 6110-00-004-1455
NSN 5950-00-479-7189
NSN 5855-01-068-3683
NSN 5985-01-183-6174
NSN 5855-00-930-9478
NSN 6145-00-407-5676
NSN 6240-01-200-7937
NSN 5975-01-557-6955
NSN 6620-00-466-2314
NSN 4140-01-398-1954