Vehicle,recovery; 19207 m88 mdl end item identification, steel,alloy grade 8655 or 6150; spec astm a304 or astm a322;shot peen per mil-s-13165 intensity 0.012 a min;clean per method iii spec tt-c-490; enamel 2 coats per spec tt-e-496; apply per mil-sdt-130;over all lg 28.6875;over all dia 0.500;first end tooled to 2.000,splined to 1.500; second end tooled to 1.750,splined to 1.250;middle portion turned to 0.375 nominal,plus 0.005,minus 0.000 dia; both ends beveled 45 deg by 0.0312 spline data,external involute serrations;no. of teeth 31;diametral pitch 64;pressure angle 45 deg;base circle diameter 0.3425;max out of roundness0.0008;max cumulative pitch error (any two teeth) 0.0015;max involute profile error 0.0005;max leaderror 0.0003 general characteristics item description

A straight metal item of various cross-sectional shapes, with serrations, flats, or the like, on each end. It is designed to withstand a severe twisting action along its longitudinal axis while held fast at both ends. It is used in lieu of a hinge pin and creates tension on a hatch(es), door(s), gate(s), or the like, when in a closed or open position. Excludes:torsion bar, suspension.