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 4140-00-684-0992
NSN 5950-00-179-2358
NSN 2925-01-468-7073
NSN 5895-00-299-1601
NSN 6650-01-358-9800
NSN 6130-01-291-1157
NSN 5910-00-584-4614
NSN 6645-01-168-8465
NSN 6620-01-288-4922
NSN 6105-00-248-5772
NSN 5915-01-397-9978
NSN 5950-00-751-9738