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 5835-01-089-7615
NSN 5895-01-535-7031
NSN 5999-01-623-7923
NSN 5998-01-524-6656
NSN 6320-01-323-7565
NSN 5975-00-350-4428
NSN 5945-01-029-3559
NSN 5915-01-356-4195
NSN 5945-00-541-7833
NSN 5925-01-487-6830
NSN 5975-01-579-1850
NSN 5965-01-527-5981