3b internal thread class hardness 28-40hrc; 0.650 in. l, 0.625 in. across flats; holes thru hex 0.039 in. dia 0.035 in. from top; BORE0.565 - 0.595 in. dp w/0.370 in. min full thd, per MS33649-04 cap unjf internal thread series
Used on two-way valve. housing assembly, 2024-T4 per qq-a-268, anodozed per mil-a-8625, optional material; filter assembly, cres; retainer-filter, 2024-T4 per qq-a-268; flange assemblies, mang bronze per qq-b-728 class a; name plate, 302 cres per mil-s-5059; identification plate, 302 cres per mil-s-5059; ferrule, mang bronze per qq-b-728 class a, back up, polytetrafluoroethylene; o-ring ruber per mil-p-5516; gasket, rubber per mil-p-5516, drive screw, steel
3a all ends thread class drilled for lockwire 0.064 min. 0.076 max in. dia passivate surface treated flared w/ center wrenching facility unf all ends thread series
3a 2nd end thread class 3/4 inch hex wrenching hex on first end, superpressure fitting, class 244 passivate surface treated rigid, threaded internal unf 1st end thread series