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 6130-01-586-4441
NSN 6130-01-570-2552
NSN 6150-00-262-4977
NSN 5910-00-826-9192
NSN 5950-01-200-7693
NSN 6135-00-519-1325
NSN 5945-01-634-0588
NSN 6220-00-378-1484
NSN 5905-01-432-1730
NSN 5910-01-467-8948
NSN 7035-01-554-7947
NSN 5945-00-201-9726