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 5915-01-067-8915
NSN 6220-01-432-5686
NSN 5905-01-482-9229
NSN 5915-01-224-5594
NSN 5835-01-020-5650
NSN 6105-00-664-1292
NSN 6130-00-267-9970
NSN 6110-01-378-7892
NSN 5920-01-607-6904
NSN 5945-00-190-4185
NSN 5930-01-372-4092
NSN 6685-01-518-6752