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 5895-00-470-8276
NSN 6240-01-633-9357
NSN 6645-00-589-0143
NSN 5950-00-504-7796
NSN 5925-00-882-7510
NSN 6110-01-387-1087
NSN 6645-01-133-8359
NSN 4140-01-228-3443
NSN 7035-00-436-1229
NSN 6645-01-040-5233
NSN 5965-00-726-3168
NSN 6650-00-389-4111