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 6105-01-437-9661
NSN 5895-01-555-3735
NSN 5999-00-245-5322
NSN 5960-00-830-5483
NSN 4140-00-051-3296
NSN 6110-00-982-2293
NSN 6610-01-247-6374
NSN 6110-01-274-4560
NSN 5985-00-196-5695
NSN 6220-01-226-8105
NSN 6620-00-816-9755
NSN 5975-00-845-6224