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 6620-01-621-0719
NSN 6220-01-430-0442
NSN 5990-01-097-4721
NSN 6610-01-032-5335
NSN 6650-00-527-7451
NSN 5910-00-336-7678
NSN 5855-00-411-8688
NSN 6135-01-074-8220
NSN 5835-01-083-8131
NSN 6220-01-577-1020
NSN 5925-01-432-8431
NSN 5920-01-481-4228