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 5915-00-698-4159
NSN 6620-01-195-7817
NSN 7035-01-354-9382
NSN 5910-01-261-2226
NSN 5915-01-617-0366
NSN 2925-01-103-4499
NSN 6685-01-362-2025
NSN 6650-01-551-5724
NSN 5915-01-467-1630
NSN 5945-01-095-9733
NSN 6320-00-382-7825
NSN 6240-01-327-2449