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 6145-01-472-4661
NSN 5920-01-057-8529
NSN 5925-01-583-7063
NSN 6135-01-525-1351
NSN 5945-00-882-4478
NSN 4140-00-801-0067
NSN 4140-01-156-0445
NSN 6105-01-047-5951
NSN 6620-01-204-2915
NSN 6220-00-780-4569
NSN 5945-01-421-4135
NSN 5915-01-287-7259