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 6685-00-311-5700
NSN 5935-01-325-4383
NSN 6620-01-096-3723
NSN 6145-00-765-6736
NSN 5985-00-192-7098
NSN 6105-01-430-5401
NSN 5945-01-634-0588
NSN 5945-01-612-4246
NSN 5975-00-160-0256
NSN 6220-01-658-1035
NSN 5930-01-494-8326
NSN 7035-01-252-5919