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 5905-01-231-6532
NSN 5915-00-802-0309
NSN 5895-01-564-8110
NSN 7035-01-633-9537
NSN 6240-01-228-9595
NSN 5985-01-331-3195
NSN 5960-01-018-4162
NSN 6110-01-437-6430
NSN 5965-01-584-9038
NSN 5950-01-182-4205
NSN 4140-01-366-4034
NSN 7035-01-359-7460