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 5935-00-270-1819
NSN 5985-01-612-2410
NSN 5998-01-340-3028
NSN 5915-01-220-8830
NSN 6220-01-468-1969
NSN 5925-01-388-3325
NSN 6130-01-296-2517
NSN 4140-01-429-7510
NSN 7035-01-537-0033
NSN 5996-00-224-6192
NSN 5999-01-293-4186
NSN 6220-01-070-7935