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 6130-01-160-8615
NSN 6110-00-174-7836
NSN 6145-00-826-9574
NSN 5999-00-621-0451
NSN 6110-01-113-7642
NSN 5895-01-005-9967
NSN 6150-01-151-5343
NSN 5925-00-351-0541
NSN 5930-01-099-1032
NSN 5895-01-273-5107
NSN 5895-01-129-9563
NSN 6320-01-227-2648