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 5945-00-081-8622
NSN 5925-00-033-5682
NSN 5960-01-223-9466
NSN 5965-01-453-3062
NSN 5985-01-039-1110
NSN 7035-00-295-0451
NSN 6130-01-329-1770
NSN 5855-01-129-4080
NSN 6130-01-056-2097
NSN 5910-01-323-1150
NSN 6685-01-475-0305
NSN 5935-01-518-8779