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 5910-01-171-9405
NSN 6320-01-547-2743
NSN 6150-01-031-0102
NSN 5985-01-237-7721
NSN 5998-01-131-3333
NSN 5905-01-343-3585
NSN 5915-01-386-8721
NSN 5990-00-917-4220
NSN 6620-01-453-6764
NSN 4140-01-108-0988
NSN 5960-01-224-7151
NSN 5835-01-493-1826