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 5998-01-146-4367
NSN 5915-00-288-0071
NSN 5835-00-130-6404
NSN 6150-01-381-3638
NSN 5930-01-080-5061
NSN 5895-00-318-1502
NSN 5990-01-249-8212
NSN 6650-00-238-1199
NSN 5905-01-605-1478
NSN 6620-01-380-4882
NSN 5915-00-093-1930
NSN 6685-01-108-2411