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 6610-00-591-5028
NSN 5965-01-144-9699
NSN 5915-01-203-3655
NSN 5950-00-106-6124
NSN 7035-00-153-3826
NSN 5975-00-233-6301
NSN 5945-01-085-0325
NSN 6610-01-646-9101
NSN 5960-01-416-6187
NSN 5998-00-818-1613
NSN 6620-01-149-0700
NSN 5930-00-959-3744