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 6145-01-080-7299
NSN 5920-01-605-4627
NSN 6145-01-565-5595
NSN 5855-01-112-7725
NSN 5925-01-541-0624
NSN 6645-01-170-7368
NSN 6105-00-189-0515
NSN 6320-01-445-0325
NSN 5996-00-797-2603
NSN 5950-00-985-5112
NSN 5925-01-004-9293
NSN 5905-00-223-4635