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 6650-01-490-2381
NSN 5975-01-568-7061
NSN 6320-00-937-5625
NSN 6220-01-211-7025
NSN 5835-01-341-7446
NSN 5935-00-311-4206
NSN 5930-01-279-1082
NSN 5960-00-364-3647
NSN 6650-01-328-8363
NSN 5910-01-125-2671
NSN 5915-00-278-4198
NSN 5960-01-020-2841