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 5895-01-505-8737
NSN 4140-01-013-6807
NSN 6685-01-301-5390
NSN 5910-01-477-8583
NSN 6110-01-597-5772
NSN 5930-00-541-7795
NSN 5910-01-514-9796
NSN 6645-00-258-8547
NSN 5935-01-113-3021
NSN 6620-01-444-8261
NSN 6240-00-126-4551
NSN 6620-00-928-6053