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 5925-01-259-7785
NSN 6110-00-415-6569
NSN 5945-00-753-1054
NSN 5935-01-566-4425
NSN 6650-01-571-7122
NSN 5990-01-524-8954
NSN 5999-01-359-7476
NSN 6240-01-568-1070
NSN 5999-01-415-5716
NSN 6620-01-497-3744
NSN 5925-01-232-2778
NSN 5920-01-011-9378