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 6650-00-527-8822
NSN 5965-00-051-6434
NSN 5895-01-323-0899
NSN 6685-01-465-1250
NSN 5999-01-468-8449
NSN 5930-01-028-0248
NSN 6650-01-465-2923
NSN 6685-00-961-6449
NSN 6610-01-312-3032
NSN 5998-01-598-8703
NSN 5996-00-615-6083
NSN 6240-01-555-8649