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 6110-01-633-9660
NSN 5998-01-502-8176
NSN 6610-01-432-3229
NSN 6150-00-232-6568
NSN 5855-01-306-3809
NSN 5930-01-122-6543
NSN 6320-01-092-4101
NSN 6320-01-495-6893
NSN 6645-00-932-1464
NSN 5996-01-144-4691
NSN 5975-00-493-3614
NSN 5999-01-417-5070