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 6110-01-065-0232
NSN 6620-00-735-9540
NSN 6130-01-493-7328
NSN 6105-01-522-1398
NSN 5945-01-229-9618
NSN 5930-00-817-3963
NSN 5945-01-389-3115
NSN 5895-01-217-7333
NSN 5945-01-012-1510
NSN 6130-01-287-8524
NSN 5945-00-738-5941
NSN 5935-01-413-6368