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 5965-01-408-8066
NSN 6650-01-648-1864
NSN 6130-01-268-1703
NSN 6220-01-437-4082
NSN 5999-01-249-5416
NSN 5915-01-307-6385
NSN 6150-00-554-7591
NSN 6240-01-058-1777
NSN 5930-00-519-9999
NSN 6130-01-322-2069
NSN 5985-01-465-2234
NSN 5985-01-613-6090