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 5996-00-101-0687
NSN 5935-00-725-2209
NSN 6685-00-117-9775
NSN 5935-01-283-3314
NSN 5975-01-188-6338
NSN 5996-01-478-7331
NSN 6320-00-036-3688
NSN 6220-00-202-8591
NSN 5915-01-007-8640
NSN 6620-01-073-6365
NSN 5965-01-388-1379
NSN 6645-00-418-2133