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 5999-00-203-5573
NSN 5835-01-525-3220
NSN 5990-01-407-1474
NSN 6130-01-620-3296
NSN 5990-01-619-8514
NSN 5905-00-318-6869
NSN 6105-00-809-7509
NSN 5905-01-408-4572
NSN 5945-01-594-7192
NSN 5990-00-230-8981
NSN 5895-00-405-2473
NSN 6145-01-198-8619