MS18308A, MILITARY SPECIFICATION SHEET: ALLOY STEEL SOCKET WELDING FLANGES AND FLANGED NIPPLES, 1/4 INCH AND 3/8 INCH, 600 POUNDS PER SQUARE INCH AT 850 DEG. F (MAXIMUM) (05-JAN-2016)

MS18308A, MILITARY SPECIFICATION SHEET: ALLOY STEEL SOCKET WELDING FLANGES AND FLANGED NIPPLES, 1/4 INCH AND 3/8 INCH, 600 POUNDS PER SQUARE INCH AT 850 DEG. F (MAXIMUM) (05-JAN-2016)., This specification sheet is approved for use by the Naval Sea Systems Command and is available for use by all Departments and Agencies of the Department of Defense.