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 5915-01-244-3616
NSN 5950-01-054-3508
NSN 5945-01-358-4012
NSN 5998-01-181-9125
NSN 5990-01-225-2283
NSN 7035-00-104-7613
NSN 5930-01-603-3572
NSN 5996-01-538-4658
NSN 6240-00-912-5186
NSN 6105-00-868-1670
NSN 6685-01-255-4039
NSN 6130-01-453-3053