Winch Driveshaft Coupling. P/N 12276915. Fits M35, M915, M939. NSN 3010-01-101-6712. Get it here and save a bundle SPECS: ABHP Overall Length 3.250 inches nominal ABXV Bore Diameter 1.2510 inches minimum second end and 1.2530 inches maximum second end ABXV Bore Diameter 1.5010 inches minimum first end and 1.5030 inches maximum first end ADAV Overall Diameter 2.190 inches nominal ADGE Bore Length 1.4400 inches nominal first end ADGE Bore Length 1.8100 inches nominal second end AGZD Bore Shape Straight through bore BSNP Securing Method Unthreaded hole BSNS Unthreaded Hole Quantity 2 CBBL Features Provided Keyway and bore counterbore CQRG III Body Material Steel FEAT Special Features Counterbore diameter: 1.503 in. nominal; counterbore depth: 1.440 in. nominal; distance from center of bore to bottom of keyway: first end, 0.751 in. nominal; second end, 0.626 in. nominal; 1 keying facility provided through bore; keying facility width: 0.314 in. minimum and 0.316 in. maximum STYL Style Designator Plain sleeve 14842 L2C7