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 6610-00-872-7600
NSN 5975-01-290-1618
NSN 6105-01-618-8230
NSN 5999-01-014-7687
NSN 5935-00-885-9397
NSN 6320-01-143-3597
NSN 6320-00-674-1361
NSN 5930-01-471-7269
NSN 5996-01-437-1186
NSN 6220-01-391-1851
NSN 5855-00-198-3197
NSN 6685-01-388-7802