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 6145-01-015-9732
NSN 5915-00-883-9287
NSN 5930-01-137-2418
NSN 5915-00-580-2716
NSN 5996-01-597-4912
NSN 6130-00-676-7023
NSN 5999-00-938-8711
NSN 5920-01-059-9368
NSN 6220-01-054-9112
NSN 6220-01-495-6996
NSN 6220-01-084-0287
NSN 6150-00-936-5387