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 5965-00-280-8506
NSN 5990-01-054-4255
NSN 6105-01-438-5846
NSN 5985-00-626-1896
NSN 6320-00-343-1798
NSN 7035-01-386-3004
NSN 7035-01-392-3097
NSN 5945-00-005-9026
NSN 5935-00-719-1029
NSN 5910-00-323-0607
NSN 5935-01-422-1114
NSN 5930-00-492-3272