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 5975-01-004-7966
NSN 5950-01-473-4708
NSN 5990-01-512-9129
NSN 6620-01-371-1655
NSN 6240-00-452-5241
NSN 4140-00-106-6780
NSN 5930-01-527-8052
NSN 6145-01-171-0719
NSN 4140-00-055-2663
NSN 6145-01-013-3095
NSN 6320-01-029-4220
NSN 7035-01-082-6250