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 5996-01-095-5345
NSN 6220-01-646-3937
NSN 6220-01-386-7591
NSN 6135-00-369-2368
NSN 5905-00-555-1899
NSN 6650-01-090-0719
NSN 6610-00-997-6876
NSN 6320-01-388-3125
NSN 5895-00-099-9532
NSN 5835-01-094-0926
NSN 6150-01-608-2396
NSN 5915-01-541-3957