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 5895-00-556-9162
NSN 7035-01-391-7470
NSN 5965-01-018-2792
NSN 2925-00-891-9289
NSN 5835-01-143-9143
NSN 6620-00-713-2701
NSN 5998-01-204-9776
NSN 5975-01-619-4194
NSN 5960-00-615-9972
NSN 6105-01-505-3367
NSN 5975-01-287-2155
NSN 5910-00-306-1431