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 5915-01-453-3225
NSN 5905-01-485-8820
NSN 5925-01-169-6007
NSN 5996-00-294-7045
NSN 6220-00-859-8582
NSN 6220-01-660-7816
NSN 6220-00-624-7175
NSN 6105-00-067-9030
NSN 5996-01-255-3281
NSN 7035-01-114-8550
NSN 6645-01-216-8682
NSN 5915-00-440-0756