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 6220-01-524-6759
NSN 5990-01-529-7307
NSN 5945-01-219-3708
NSN 5910-01-362-5602
NSN 5855-01-228-0942
NSN 6240-01-437-6888
NSN 7035-01-593-1719
NSN 5935-00-964-5470
NSN 5855-00-361-0167
NSN 5930-01-660-4278
NSN 5895-01-418-0850
NSN 5975-00-226-6677