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 5996-00-289-9847
NSN 6240-00-056-1571
NSN 6135-01-603-3657
NSN 5985-01-607-2764
NSN 6110-01-320-4818
NSN 5960-01-127-5425
NSN 5965-01-076-0071
NSN 6620-01-411-9489
NSN 5930-00-102-8886
NSN 6150-00-089-7057
NSN 6650-00-710-8130
NSN 5915-00-110-6565