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 5945-01-445-7162
NSN 5998-01-074-8832
NSN 5990-00-193-0498
NSN 5945-00-859-2839
NSN 5920-00-344-0980
NSN 6650-01-160-9160
NSN 2925-01-497-9381
NSN 5960-01-505-2426
NSN 5998-01-592-4641
NSN 5915-01-118-6548
NSN 5998-01-044-5169
NSN 6320-01-299-6367