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 6320-01-495-6893
NSN 6320-00-070-4544
NSN 6110-00-214-9186
NSN 5945-00-980-4972
NSN 5905-00-964-4354
NSN 4140-01-383-1862
NSN 5996-00-116-7498
NSN 5950-01-168-3824
NSN 6620-00-022-8056
NSN 5996-01-612-6511
NSN 5996-01-004-7832
NSN 5960-00-296-5353