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 7035-01-626-3229
NSN 5950-01-192-9238
NSN 6105-01-196-9971
NSN 5895-01-418-1764
NSN 5945-00-501-1494
NSN 7035-00-421-8710
NSN 5985-00-683-5592
NSN 5990-01-455-8035
NSN 5990-01-388-9264
NSN 5999-00-055-1042
NSN 5905-00-967-6324
NSN 6130-01-216-1217