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 6145-00-259-1622
NSN 5895-01-408-7180
NSN 5996-01-651-7581
NSN 5915-00-587-8811
NSN 5910-00-401-3110
NSN 5975-00-276-7559
NSN 5945-00-239-4504
NSN 5996-00-369-5299
NSN 6610-01-111-4807
NSN 5945-01-312-5411
NSN 6320-01-283-1300
NSN 6220-01-657-5324