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 7035-01-338-2994
NSN 6150-01-274-6349
NSN 5930-01-571-8762
NSN 5855-00-149-0766
NSN 2925-01-217-0465
NSN 6145-00-269-4271
NSN 6240-01-555-8365
NSN 5895-00-940-9144
NSN 6150-01-290-0462
NSN 6650-01-521-2077
NSN 5930-01-381-2523
NSN 5950-01-485-5371