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 5935-01-221-2344
NSN 4140-01-605-1533
NSN 5905-00-588-9456
NSN 5950-00-709-3070
NSN 5935-01-306-5469
NSN 5915-00-518-0851
NSN 6320-00-857-4073
NSN 5998-01-172-5369
NSN 5930-01-040-7843
NSN 5990-01-122-5629
NSN 6150-01-656-0474
NSN 5895-01-364-4172