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 6150-01-147-6177
NSN 5965-01-510-9771
NSN 6220-01-040-2959
NSN 5835-01-632-6627
NSN 7035-01-475-9017
NSN 6320-01-296-3181
NSN 2925-01-420-2362
NSN 5925-01-300-4033
NSN 5920-01-601-4172
NSN 6130-00-765-2255
NSN 5895-01-398-9088
NSN 5905-00-192-0651