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 6240-01-386-4594
NSN 5835-01-324-3967
NSN 5996-00-034-6024
NSN 6135-01-173-6306
NSN 7035-00-300-3208
NSN 6220-00-880-3181
NSN 6110-00-065-7505
NSN 5960-00-922-2943
NSN 5935-01-091-2209
NSN 5895-01-032-4938
NSN 6620-01-141-5747
NSN 6135-00-505-0679