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 6620-01-152-0936
NSN 5925-01-486-8707
NSN 5930-01-141-6732
NSN 5915-01-145-1431
NSN 5920-01-109-9598
NSN 6150-01-503-3212
NSN 6135-00-919-1117
NSN 6685-01-088-4821
NSN 5895-01-424-0311
NSN 5905-00-642-5634
NSN 7035-00-117-0418
NSN 6145-01-141-6809