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 6110-01-381-6916
NSN 5985-00-636-8689
NSN 5950-01-053-6595
NSN 6610-00-269-4506
NSN 5895-01-203-6163
NSN 7035-01-525-7673
NSN 5895-01-246-7254
NSN 6620-01-285-4685
NSN 6220-00-319-2276
NSN 6150-00-106-8747
NSN 6105-01-068-3045
NSN 5910-00-060-7609