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 6650-00-917-0436
NSN 5895-01-594-8740
NSN 5910-01-633-9963
NSN 6150-01-123-3787
NSN 5935-00-469-6530
NSN 6240-01-424-8499
NSN 5915-01-436-1876
NSN 6135-00-937-4118
NSN 6645-01-352-6583
NSN 6610-01-649-5326
NSN 5935-00-106-0096
NSN 5960-01-031-7992