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 5935-00-391-5883
NSN 6650-01-381-3542
NSN 5935-01-314-2340
NSN 5950-01-442-9335
NSN 5985-01-634-0635
NSN 2925-01-643-8395
NSN 5996-01-406-4035
NSN 5990-01-501-9094
NSN 6105-01-550-4497
NSN 6320-01-350-5570
NSN 6320-01-453-5152
NSN 5960-01-325-2241