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 5895-01-352-6674
NSN 6150-01-126-8949
NSN 5965-00-900-8102
NSN 5945-00-629-5236
NSN 6645-00-581-9239
NSN 5835-01-063-3484
NSN 5998-00-509-5069
NSN 5996-00-205-2933
NSN 5945-01-327-4646
NSN 5990-00-908-0807
NSN 5998-01-612-8793
NSN 6685-00-013-9298