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 5925-01-391-9019
NSN 6620-00-292-7000
NSN 5835-01-593-7579
NSN 5945-01-214-0222
NSN 6130-00-081-4317
NSN 5855-01-580-6760
NSN 5895-01-469-2112
NSN 6610-00-161-0680
NSN 6105-00-960-0072
NSN 6150-01-035-9821
NSN 6240-01-597-8430
NSN 5925-01-025-6167