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 5945-00-949-2422
NSN 6105-01-590-7509
NSN 5996-01-196-8541
NSN 6145-01-435-2215
NSN 6685-00-269-4895
NSN 6150-00-526-3720
NSN 6105-01-193-8876
NSN 5910-01-505-7657
NSN 6320-00-300-5556
NSN 5895-01-250-2813
NSN 5960-00-273-3260
NSN 6130-00-102-9655