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 5855-00-482-9876
NSN 5905-00-900-7278
NSN 6610-01-445-6362
NSN 5985-00-409-1453
NSN 7035-01-542-7946
NSN 5915-00-494-0581
NSN 5910-01-501-9988
NSN 5975-01-626-5973
NSN 5855-01-346-7682
NSN 6220-00-101-8799
NSN 5999-01-237-4018
NSN 5945-00-926-8520