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 5999-00-505-0359
NSN 6105-01-604-3435
NSN 5920-00-969-2350
NSN 4140-00-701-0406
NSN 5905-00-597-3781
NSN 5920-01-022-7507
NSN 6240-00-079-1759
NSN 5960-00-445-3954
NSN 6620-01-498-4780
NSN 6320-01-512-2031
NSN 4140-01-587-2190
NSN 5999-00-753-7450