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 6240-01-304-2798
NSN 2925-01-604-8984
NSN 5935-01-041-3668
NSN 6145-01-554-3045
NSN 5985-01-433-7266
NSN 5990-01-386-5561
NSN 5910-01-640-9865
NSN 6130-00-187-0211
NSN 5920-00-391-6252
NSN 5920-00-974-4381
NSN 6685-00-333-5348
NSN 4140-01-487-5453