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 5950-01-479-8019
NSN 5996-01-526-6120
NSN 6620-01-294-1044
NSN 5985-01-246-9766
NSN 5915-01-500-2147
NSN 6240-01-367-9624
NSN 6620-01-432-7032
NSN 5950-01-425-6348
NSN 5895-00-717-6158
NSN 6650-00-826-7396
NSN 5985-01-396-5444
NSN 6105-00-737-0829