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 7035-00-152-0055
NSN 6105-01-421-2413
NSN 5915-01-185-0541
NSN 6135-00-196-5267
NSN 5855-01-603-0502
NSN 5985-01-106-9974
NSN 5925-00-429-9859
NSN 6610-01-389-0620
NSN 5975-01-300-1548
NSN 5915-01-328-8563
NSN 5960-01-419-5421
NSN 6650-01-366-2424