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 5895-00-039-7257
NSN 5996-01-568-7179
NSN 5910-01-460-7332
NSN 5895-00-144-0250
NSN 5905-00-907-4555
NSN 6130-00-834-2764
NSN 5975-01-193-7542
NSN 5945-01-200-6316
NSN 6620-01-529-7513
NSN 5985-00-717-8877
NSN 4140-01-104-0743
NSN 7035-00-679-9027