O-F-499D, FEDERAL SPECIFICATION: FLUX, BRAZING, (SILVER BRAZING FILLER METAL, LOW MELTING POINT) (6 FEB 1985)
O-F-499D, FEDERAL SPECIFICATION: FLUX, BRAZING, (SILVER BRAZING FILLER METAL, LOW MELTING POINT) (6 FEB 1985)., This specification covers low-melting-point fluxes for use with silver brazing filler metal in brazing ferrous and nonferrous metals, excluding light metals and their alloys.