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 2925-01-030-6580
NSN 7035-01-313-6973
NSN 5985-01-496-2089
NSN 6240-01-023-7720
NSN 5935-01-382-9587
NSN 5910-01-162-4925
NSN 6130-00-631-7212
NSN 7035-01-610-9570
NSN 6135-00-708-0892
NSN 5930-01-188-7378
NSN 6135-01-106-7740
NSN 7035-01-231-2450