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 5935-01-176-0749
NSN 6220-01-055-7423
NSN 6240-01-183-0893
NSN 6110-00-418-9363
NSN 6645-01-144-4408
NSN 4140-01-409-1764
NSN 5895-00-905-5730
NSN 6130-00-869-0758
NSN 6145-01-027-2055
NSN 6105-01-401-5361
NSN 5998-01-101-4476
NSN 5915-00-194-6537