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 5915-01-252-8683
NSN 6105-00-927-5039
NSN 5996-01-330-6047
NSN 5925-01-595-4319
NSN 5950-01-518-7769
NSN 5925-01-224-8598
NSN 6105-01-071-4851
NSN 6110-00-293-6816
NSN 5835-01-228-0178
NSN 6645-00-089-1942
NSN 6240-01-553-3253
NSN 6135-01-336-3115