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 6240-01-401-5340
NSN 5960-00-647-9159
NSN 5835-00-752-6065
NSN 5990-01-316-6344
NSN 6110-01-359-2743
NSN 5985-00-911-3692
NSN 6685-01-232-9965
NSN 6240-01-298-4644
NSN 5915-00-576-0252
NSN 6130-01-119-7069
NSN 5835-01-091-8353
NSN 5945-01-498-4257