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 5920-01-533-6703
NSN 6145-01-124-5425
NSN 5895-01-211-6241
NSN 5975-01-110-7686
NSN 5998-01-110-9935
NSN 6650-01-207-0829
NSN 5905-00-823-7796
NSN 5999-00-059-7573
NSN 6220-01-516-1292
NSN 5910-01-174-7943
NSN 5985-00-165-3606
NSN 5975-01-629-9237