Specifications for Bath Iron Works hull 192, Chevalier, were unchanged from those for the two preceding 2100-ton Fletcher-class ships—Nicholas and O’Bannon—built there:
Name: U.S.S. Chevalier
Type: Destroyer
Namesake: LCdr. Godfrey de Courcelles Chevalier, USN
Navy Classification: DD 451
Class: DD 445, Fletcher
Authorized: 27 March 1934
Builder: Bath Iron Works Corp., Bath, Maine
Builder’s Hull Number: 192
Keel laid: 30 April 1941
Launched: 11 April 1942
Commissioned: 20 July 1942
Disposition: Lost: 7 October 1943
    Length Overall: 376' 5½"
    Extreme Beam: 39' 8"
    Normal Displacement: 2,050 long tons
    Draft: Light: 8' 1"; Mean: 13' 5" Deep: 22’8”
    Designed Complement: Officers, 34; Enlisted, 295
    Designed Shaft Horsepower: 60,000
    Designed Speed: 36 knots
    Screws: Two
    Rudder: One
    Stacks: Two
    Tactical diameter: 950 yards at 30 knots
    Endurance: 4,800 nautical miles at 15 knots.
Chevalier carried a 1.1-inch anti-aircraft cannon between the No. 3 and 4 5-inch gunhouses, the initial 1942 armament of these first Fletchers.
    Primary: 5 x 5-inch/38 cal. in five single mounts
    Long-range anti-aircraft: 4 x 1.1-inch cannon in one quadruple mount
    Short-range anti-aircraft: 6 to 11 x 20mm Oerlikon in single mounts
    Torpedo Tubes: 10 x 21-inch in two quintuple mounts
    ASW: 2 racks for 600-lb. charges; 6 “K”-guns for 300-lb. charges
Her electronics were also typical:
    Radar: SC (air search) and SG (surface search), Mk 37 (fire control)
    Sonar: QC
Chevalier had not been modified when she was lost.

References: Friedman and Action Reports.