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 6105-01-602-4810
NSN 5996-01-228-2306
NSN 6130-00-177-6466
NSN 5996-01-400-0917
NSN 5965-01-009-5758
NSN 5920-00-816-7535
NSN 6220-01-185-1136
NSN 6105-01-341-9122
NSN 5960-01-223-1203
NSN 5920-01-474-8172
NSN 5930-01-621-8798
NSN 6650-01-409-0820