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 6610-01-517-8652
NSN 5915-01-470-1685
NSN 6610-00-633-4338
NSN 5855-00-150-1820
NSN 5930-01-439-5786
NSN 5920-00-064-3523
NSN 6110-00-583-9821
NSN 6135-01-501-5376
NSN 7035-01-386-5722
NSN 6220-00-458-4633
NSN 6130-01-394-4986
NSN 5895-01-586-5280