Aluminum Bronze Casting

ALUMINUM BRONZE CSTG, ALLOY C63000, ORIFICE, OUTER, VARIABLE RECOIL,
ROUGH MACHINED IN STRICT ACCORDANCE WITH RIA DRG. 12012324-47, REV B.
CASTING MUST BE FREE FROM INCLUSIONS, BLOW HOLES, SHRINKS AND POROSITY
AND MUST BE CAPABLE OF DEVELOPING A (63) MICRO INCH RMS FINISH ON INSIDE
AND OUTSIDE DIAMS. ANY CASTING FOUND TO BE DEFECTIVE DURING AND AFTER
MACHINING IS SUBJECT TO REJECTION & WILL BE REPLACED BY THE CONTRACTOR
AT NO COST TO THE GOVT.ASTM B271-73 DRG. REQD\ COC and CTR FOR MATERIAL
REQUIRED.