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 7035-01-568-3135
NSN 6685-01-432-7156
NSN 6130-01-633-5173
NSN 6130-01-597-7041
NSN 5910-00-018-6713
NSN 5975-01-598-2673
NSN 5945-01-619-6557
NSN 6105-01-388-8383
NSN 6610-01-445-7679
NSN 6620-01-163-1613
NSN 5950-00-548-7392
NSN 5930-01-465-2884