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 6610-01-242-9674
NSN 4140-01-038-6029
NSN 5965-01-568-0102
NSN 6145-01-503-0889
NSN 6150-00-688-9758
NSN 5998-00-111-4374
NSN 5895-01-294-6315
NSN 5930-01-255-8911
NSN 5998-01-254-3073
NSN 7035-01-227-2546
NSN 6135-00-880-1026
NSN 6135-01-119-0720