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 6145-01-451-7412
NSN 5999-01-542-8622
NSN 5915-01-462-3381
NSN 5835-00-315-3797
NSN 5960-01-415-3574
NSN 6145-01-552-0654
NSN 6240-01-437-6680
NSN 5935-01-576-5456
NSN 5996-01-087-5954
NSN 5915-01-398-8293
NSN 5945-01-425-2986
NSN 4140-01-541-1271