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 5950-00-552-0443
NSN 5945-01-403-2800
NSN 6650-01-230-1501
NSN 5996-01-323-0166
NSN 6650-00-927-3391
NSN 6135-00-497-0491
NSN 5895-00-699-0005
NSN 5920-01-460-7369
NSN 6320-01-397-0399
NSN 5999-00-128-0671
NSN 5998-01-144-2165
NSN 5950-01-487-7190