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 6105-01-392-1539
NSN 5895-00-957-6277
NSN 6135-01-529-3789
NSN 6620-01-445-1239
NSN 5915-00-208-4686
NSN 5920-01-201-7346
NSN 5985-00-100-1296
NSN 7035-01-023-7859
NSN 6610-01-525-8235
NSN 6645-00-494-3065
NSN 6105-00-268-2878
NSN 5835-01-370-4292