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 2925-00-193-2402
NSN 6650-01-065-2796
NSN 5945-00-648-4968
NSN 5960-01-134-4099
NSN 5990-01-095-8866
NSN 7035-01-471-8349
NSN 6650-00-564-7322
NSN 2925-01-629-9416
NSN 5905-00-753-0299
NSN 5910-00-918-0791
NSN 5975-01-547-3598
NSN 7035-01-591-5814