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: Gaskets,washers & other seals
NSN 6145-00-994-0820
NSN 7035-00-111-4389
NSN 6130-00-820-9611
NSN 5855-00-444-2298
NSN 6130-01-660-4306
NSN 6145-01-327-8034
NSN 7035-01-545-6402
NSN 5835-01-502-9228
NSN 6650-01-497-1773
NSN 5925-01-269-2453
NSN 5935-01-214-0427
NSN 5910-00-526-0694