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 6135-00-231-7257
NSN 5965-01-147-5847
NSN 6685-00-556-8811
NSN 5965-00-891-2778
NSN 6130-01-188-7411
NSN 5975-00-725-3348
NSN 6650-01-523-7026
NSN 6220-01-242-9901
NSN 6645-00-162-8943
NSN 5895-01-371-2431
NSN 6135-01-573-7164
NSN 5925-01-082-9349