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 6620-01-633-8443
NSN 6110-01-451-9294
NSN 5835-01-180-9441
NSN 6110-00-776-5961
NSN 5930-01-323-7161
NSN 5945-01-587-4780
NSN 5975-00-214-1673
NSN 6135-00-334-4500
NSN 6150-01-096-5213
NSN 6645-01-273-2462
NSN 6130-01-135-5810
NSN 5998-01-258-9676