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 7035-01-348-5153
NSN 6240-01-070-8612
NSN 6150-00-261-4889
NSN 6110-01-138-1205
NSN 5855-01-558-7676
NSN 5996-01-193-7529
NSN 6610-00-097-5176
NSN 6320-01-176-8367
NSN 6110-01-069-2966
NSN 6220-01-182-6982
NSN 5920-00-823-0969
NSN 5895-01-631-4087