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 5975-00-734-4606
NSN 6150-01-373-9864
NSN 5975-01-291-7029
NSN 6620-01-376-3744
NSN 5895-01-464-5130
NSN 5945-01-589-2889
NSN 5835-00-827-1904
NSN 6645-01-557-8134
NSN 5960-00-830-5483
NSN 6610-00-247-5200
NSN 6110-01-490-5463
NSN 6110-00-316-3484