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 6320-01-616-0843
NSN 5998-00-930-8280
NSN 5999-00-358-1933
NSN 6320-01-592-6248
NSN 5905-01-142-8665
NSN 6320-01-600-5808
NSN 5935-01-384-6206
NSN 5895-01-471-9684
NSN 6145-01-321-7348
NSN 5835-01-534-3172
NSN 5925-01-646-0722
NSN 5910-01-358-7310