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 6645-01-018-1799
NSN 5990-00-067-6791
NSN 6110-01-386-3093
NSN 5945-01-367-8804
NSN 5945-00-553-9963
NSN 5855-00-586-6255
NSN 5945-01-177-9080
NSN 5998-01-354-5525
NSN 5960-01-312-1262
NSN 5998-01-371-2988
NSN 5855-00-688-9954
NSN 5905-00-761-9335