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 5915-00-125-7095
NSN 5999-01-374-2154
NSN 5945-01-548-8454
NSN 5975-00-553-7151
NSN 6650-01-363-9608
NSN 6130-00-982-3896
NSN 4140-01-181-3213
NSN 5895-00-376-5074
NSN 6620-00-703-0860
NSN 6620-01-542-9999
NSN 5999-01-627-0796
NSN 5855-01-221-4076