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 6610-00-777-2591
NSN 6150-01-018-5060
NSN 5835-01-067-7770
NSN 5990-01-208-4322
NSN 5998-01-430-7248
NSN 5960-01-605-9921
NSN 7035-01-106-3476
NSN 6145-01-219-0793
NSN 5996-01-210-5537
NSN 6320-01-323-7565
NSN 6110-00-284-1161
NSN 6610-01-222-0582