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 6105-01-584-1562
NSN 5855-00-832-9341
NSN 6320-01-514-6141
NSN 5985-01-520-4637
NSN 6130-01-151-2552
NSN 2925-01-027-1293
NSN 6620-01-363-0499
NSN 5965-01-147-5655
NSN 5950-00-470-3438
NSN 5999-00-186-9314
NSN 5910-00-960-3889
NSN 6240-01-533-0851