A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 5835-01-029-5602
NSN 6240-00-899-6990
NSN 5915-01-541-3957
NSN 5935-01-579-7346
NSN 6645-00-256-4072
NSN 5999-01-499-5490
NSN 5960-01-217-1479
NSN 7035-00-834-2090
NSN 6645-01-537-1066
NSN 2925-00-707-6770
NSN 5910-00-763-9025
NSN 6320-00-242-3300