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 6645-01-434-2648
NSN 6135-01-462-6040
NSN 4140-00-052-0920
NSN 6220-00-379-4044
NSN 5998-01-410-5072
NSN 6105-01-458-3411
NSN 6610-01-169-6134
NSN 5930-00-522-1796
NSN 5950-01-403-2852
NSN 5965-01-260-5781
NSN 6135-01-462-6040
NSN 5945-00-203-5925