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 5935-01-359-6495
NSN 6145-00-508-4710
NSN 6150-00-844-0254
NSN 5910-01-607-7242
NSN 5895-00-170-4568
NSN 5895-00-969-9113
NSN 6130-00-222-6216
NSN 6130-01-242-9778
NSN 6135-00-497-0491
NSN 6320-01-141-3791
NSN 6110-01-291-9307
NSN 5930-01-093-4255