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 5999-00-914-5269
NSN 5835-01-424-0054
NSN 6150-00-128-5992
NSN 5996-00-277-7384
NSN 6650-00-789-8179
NSN 5945-01-394-2206
NSN 5835-00-827-1904
NSN 5915-01-246-5027
NSN 5945-01-458-1674
NSN 6110-01-025-6139
NSN 6145-00-162-7922
NSN 5930-00-597-5064