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 5895-01-199-1006
NSN 6135-01-368-2785
NSN 5930-01-325-2842
NSN 6620-01-322-8382
NSN 6645-00-844-7848
NSN 5990-01-092-1963
NSN 6145-00-192-7215
NSN 5960-00-732-0989
NSN 6130-01-645-8047
NSN 5950-00-057-5962
NSN 5975-00-849-7922
NSN 6685-00-839-1106