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 6610-00-076-5613
NSN 5835-01-293-6453
NSN 5895-01-303-2296
NSN 6645-00-192-1152
NSN 6130-01-610-4027
NSN 5975-01-436-1013
NSN 5935-01-463-1796
NSN 5930-01-101-1814
NSN 5960-01-011-8687
NSN 6105-01-212-2142
NSN 5910-01-044-5886
NSN 5996-01-007-2147