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 5965-01-359-0059
NSN 7035-01-227-2546
NSN 5965-00-524-5521
NSN 5930-01-254-2616
NSN 6220-00-769-7858
NSN 5945-01-030-7231
NSN 5895-01-632-6617
NSN 6320-01-462-3555
NSN 5998-01-253-7442
NSN 5975-01-239-2623
NSN 5905-01-627-1020
NSN 5998-00-553-6973