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 6650-00-115-6654
NSN 5960-00-778-2866
NSN 5960-00-251-6619
NSN 6150-01-557-7639
NSN 6685-01-102-5994
NSN 5960-01-514-5433
NSN 6610-01-061-8466
NSN 5895-01-468-7834
NSN 5855-00-797-8217
NSN 7035-00-803-3056
NSN 6320-01-294-7161
NSN 5945-01-410-8181