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 6145-01-051-3343
NSN 6105-01-378-6604
NSN 7035-01-359-3915
NSN 6620-01-552-0524
NSN 6610-01-642-1752
NSN 5930-01-289-0921
NSN 6220-01-600-7807
NSN 6150-00-840-3674
NSN 6220-00-035-6736
NSN 5965-00-907-5183
NSN 5835-01-085-9591
NSN 5985-01-158-5645