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 6650-01-068-9248
NSN 5975-00-477-0614
NSN 5945-01-580-5731
NSN 5960-00-807-2032
NSN 5925-01-660-2124
NSN 5915-00-823-8334
NSN 5915-00-868-9695
NSN 5915-01-368-5668
NSN 6320-00-228-5678
NSN 5835-01-495-5986
NSN 5998-00-455-6498
NSN 5835-01-561-2959