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 5835-01-618-6485
NSN 6135-01-142-2417
NSN 5975-00-877-6957
NSN 5835-00-386-4966
NSN 5925-01-444-4575
NSN 5915-01-528-8298
NSN 5930-01-588-1215
NSN 5985-00-518-3057
NSN 6135-01-422-1440
NSN 5985-01-362-1958
NSN 5985-01-660-3257
NSN 6105-00-914-6065