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 5910-01-073-5762
NSN 5930-01-618-3049
NSN 6320-00-403-6003
NSN 5996-01-455-4729
NSN 5920-01-510-2137
NSN 6240-01-064-9727
NSN 6130-00-540-5305
NSN 5965-01-442-5405
NSN 6320-01-532-7491
NSN 5930-00-006-6925
NSN 6110-01-010-0905
NSN 5998-01-119-7430