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 6135-01-541-9264
NSN 5945-01-113-6828
NSN 6645-01-615-9875
NSN 6135-01-526-0144
NSN 7035-00-631-3782
NSN 5996-01-623-8237
NSN 6320-00-456-0836
NSN 6685-00-481-9852
NSN 6685-01-534-3725
NSN 5915-00-833-9025
NSN 2925-01-273-4898
NSN 6110-00-186-2542