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 5990-01-243-4233
NSN 5920-00-259-7294
NSN 5950-00-072-6937
NSN 6240-01-200-7937
NSN 5905-00-234-9863
NSN 5996-01-630-6436
NSN 5930-01-110-6334
NSN 5990-00-386-4951
NSN 5930-01-289-0921
NSN 5996-00-525-1777
NSN 6130-01-052-9572
NSN 6320-00-546-9249