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 6610-00-277-7206
NSN 6105-00-006-3159
NSN 5930-01-359-2088
NSN 6135-01-350-2932
NSN 5975-01-247-2305
NSN 5999-01-422-2962
NSN 5975-00-181-5825
NSN 5855-01-411-0189
NSN 5950-01-462-2229
NSN 5905-01-191-3092
NSN 5990-01-455-2919
NSN 6130-01-534-6253