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 5965-01-528-8152
NSN 6110-01-514-8214
NSN 6220-01-073-6389
NSN 7035-01-519-4990
NSN 5998-01-167-9000
NSN 6105-00-074-3223
NSN 5975-01-381-1751
NSN 5945-00-406-8761
NSN 5960-00-504-9264
NSN 5965-01-189-4805
NSN 6130-01-505-0360
NSN 6105-00-332-9087