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 5965-01-317-2093
NSN 5999-01-491-7878
NSN 6650-01-381-2972
NSN 5910-01-435-6053
NSN 7035-01-623-7774
NSN 5930-00-163-4615
NSN 6130-01-292-5280
NSN 5835-01-159-9088
NSN 5945-01-322-8580
NSN 6320-01-193-8606
NSN 5975-01-399-7729
NSN 6145-01-487-3773