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 6105-01-175-3077
NSN 5960-01-494-7960
NSN 7035-00-295-0451
NSN 5835-01-268-1924
NSN 6145-00-551-5288
NSN 5920-01-157-2767
NSN 5945-01-307-3574
NSN 5960-01-124-0182
NSN 5835-01-101-8382
NSN 6650-01-529-4601
NSN 5960-01-139-5968
NSN 5965-01-381-2998