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 6105-00-186-6510
NSN 5996-01-023-8370
NSN 6130-01-526-8904
NSN 6105-00-548-3547
NSN 5915-01-044-5260
NSN 6135-01-215-1245
NSN 5915-01-362-0665
NSN 5975-00-276-3436
NSN 5910-01-108-3196
NSN 5855-01-561-2677
NSN 5895-00-788-3268
NSN 6150-00-062-1147