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 6650-01-089-6192
NSN 6620-01-285-4685
NSN 5950-01-215-7876
NSN 5915-01-605-7226
NSN 2925-01-187-5480
NSN 4140-01-442-6442
NSN 5855-00-631-4565
NSN 5905-01-044-5890
NSN 5895-00-156-4531
NSN 5999-00-829-2683
NSN 6110-00-320-8047
NSN 5855-01-149-4110