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 6650-01-340-9537
NSN 6110-01-130-2024
NSN 6145-00-896-1893
NSN 5998-01-155-2310
NSN 5975-00-802-4996
NSN 5985-01-100-3195
NSN 6105-00-598-4910
NSN 6650-00-087-1569
NSN 6610-01-322-4331
NSN 6240-01-421-5478
NSN 6320-01-233-5798
NSN 6130-01-292-8716