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 6685-01-277-7165
NSN 5945-01-510-2793
NSN 5835-01-010-3103
NSN 5965-00-957-5200
NSN 5998-00-494-1414
NSN 5915-01-647-4236
NSN 6220-00-635-8818
NSN 5920-00-650-6562
NSN 6150-01-174-9403
NSN 6320-01-289-0946
NSN 5835-00-933-9609
NSN 5895-01-467-2886