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 5905-00-328-4259
NSN 6105-00-291-0154
NSN 5996-00-548-3889
NSN 5920-01-394-5003
NSN 6135-01-180-9611
NSN 6240-01-116-1275
NSN 6240-01-426-5581
NSN 6110-01-371-3049
NSN 6220-01-655-2323
NSN 5960-01-425-1454
NSN 5965-01-131-7496
NSN 5999-01-192-3975