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 5915-01-568-3469
NSN 5920-01-055-2024
NSN 5895-01-285-8171
NSN 6135-01-306-6549
NSN 6105-00-280-2808
NSN 5915-01-627-3622
NSN 6110-01-007-9934
NSN 5990-01-013-8464
NSN 5999-00-175-2346
NSN 6150-01-410-7638
NSN 5895-01-019-4197
NSN 5960-01-423-1085