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 5895-01-093-0898
NSN 5990-01-492-6575
NSN 6220-00-529-8415
NSN 5915-01-015-7429
NSN 6110-00-171-2214
NSN 5960-01-047-9224
NSN 5945-01-299-0819
NSN 5910-01-387-0467
NSN 5975-01-118-1542
NSN 5905-00-484-1278
NSN 2925-01-469-8229
NSN 5999-01-100-3918