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 6685-01-602-7881
NSN 5960-01-274-3900
NSN 6645-01-622-1830
NSN 5998-00-242-8594
NSN 5855-01-485-4327
NSN 5999-00-280-9063
NSN 5910-01-256-6199
NSN 7035-00-421-8710
NSN 5910-00-865-2152
NSN 5990-01-160-6978
NSN 7035-01-445-3563
NSN 5990-01-324-7529