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 5990-01-084-0807
NSN 5835-01-424-4577
NSN 6620-00-073-2693
NSN 5925-00-787-7206
NSN 6145-00-427-7201
NSN 6685-00-010-3053
NSN 5905-01-376-4423
NSN 6610-01-406-4985
NSN 5999-01-592-9190
NSN 4140-00-211-5970
NSN 5915-00-287-5062
NSN 6650-00-958-7408