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 6620-00-190-8109
NSN 6240-01-611-3411
NSN 5895-01-447-2748
NSN 5950-01-386-3173
NSN 6320-01-359-3921
NSN 6110-00-454-2074
NSN 5855-00-177-3529
NSN 5910-01-412-1070
NSN 5945-00-134-8496
NSN 5985-01-494-2253
NSN 6130-00-852-0689
NSN 4140-00-900-6102