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 5895-01-407-1234
NSN 5965-01-614-1191
NSN 5990-00-104-4903
NSN 6650-01-445-6492
NSN 5960-00-476-7964
NSN 5960-00-824-5229
NSN 5910-01-382-9288
NSN 5910-00-445-8904
NSN 2925-01-144-7106
NSN 6650-01-381-3542
NSN 6110-01-532-5750
NSN 5835-01-495-0595