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 6645-00-406-2564
NSN 5996-01-437-6227
NSN 4140-01-240-1116
NSN 5835-01-414-3258
NSN 6105-01-353-9082
NSN 5835-00-905-7165
NSN 5999-00-775-0857
NSN 5905-00-762-2414
NSN 2925-01-214-5333
NSN 6620-01-391-1920
NSN 6650-01-386-1300
NSN 5910-00-497-5601