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 5835-01-576-9013
NSN 6135-01-553-7711
NSN 5990-01-131-2008
NSN 6150-01-145-4449
NSN 5960-01-388-1988
NSN 6610-00-753-2281
NSN 5985-01-201-0568
NSN 7035-01-510-8787
NSN 5910-01-653-8074
NSN 5895-00-471-3516
NSN 5855-01-461-8089
NSN 5855-00-973-5717