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 5999-01-192-9408
NSN 5960-00-558-9152
NSN 5998-01-412-3438
NSN 6685-01-249-6055
NSN 5905-01-393-9799
NSN 5910-01-306-3994
NSN 5999-01-424-0566
NSN 5998-01-465-7864
NSN 5905-01-568-8998
NSN 6620-01-546-3337
NSN 6610-01-119-3048
NSN 5910-01-076-4955