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 6220-00-696-1519
NSN 5998-01-319-0497
NSN 5960-00-079-5059
NSN 6110-01-281-5492
NSN 5915-01-235-2144
NSN 5965-01-411-4767
NSN 6240-01-032-4624
NSN 6320-01-233-5798
NSN 5930-01-541-5101
NSN 5945-01-154-0881
NSN 5985-00-490-3500
NSN 6110-01-385-5413