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 5999-01-633-9816
NSN 6130-01-027-5152
NSN 6220-01-391-6084
NSN 5855-00-763-2155
NSN 5985-01-468-6894
NSN 5950-01-372-9036
NSN 6105-01-628-3534
NSN 5950-01-068-4637
NSN 5990-01-446-9118
NSN 6240-01-340-2238
NSN 5998-01-432-0508
NSN 5895-01-375-7840