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 7035-00-117-0418
NSN 6110-01-562-1821
NSN 5930-01-330-8697
NSN 5998-01-312-0011
NSN 5895-00-066-7225
NSN 5990-01-272-4091
NSN 5905-01-218-8736
NSN 5999-01-012-2449
NSN 6240-01-414-3873
NSN 5895-01-470-1108
NSN 5935-01-219-3651
NSN 5915-01-041-9188