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 5998-00-159-1288
NSN 5975-00-258-3056
NSN 5930-00-958-5132
NSN 5915-00-682-1941
NSN 6320-00-553-8427
NSN 6110-00-906-6244
NSN 6150-01-367-6309
NSN 5945-01-082-0911
NSN 5999-00-936-7789
NSN 6150-01-091-8376
NSN 6685-00-186-9190
NSN 6105-01-585-2502