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MIL-T-46632B(OS)
3.2.1  Raw material.  The contractor shall be responsible for selecting from the
classification list contained in the raw material specification the surface and physical
condition of the raw material intended for use in manufacture.
3.3 Hardness and other physical properties. Hardness and other physical properties required
by the drawing shall be uniform throughout the part within specified tolerances. Requirements for
all alloy steel parts shall be achieved by quenching and tempering.
3.4 Hydrostatic pressure. The body and head shall withstand a hydrostatic pressure of 10,000
pounds per square inch (psi) for 15 seconds, minimum, without leaking, deformation, or mechanical
failure (see 6.4.1).
3.5 Torque.
3.5.1 Assembly torque. The body and holding rings shall be assembled hand tight. A torque of
100 + 20 inch pounds shall then be applied between the body and holding ring for the purpose of
tightening the assembly prior to spotting threads for setscrew installation.
3.5.2 Breakaway torque. The body with respect to the holding ring shall withstand a breakaway
torque application of 400 inch pounds, minimum, without any movement or deformation.
3.6 Structural strength. The assembled thruster shall withstand a static tensile force of
2,000 pounds, minimum, for 15 seconds, minimum, between mounting points without unlocking and
without mechanical failure (see 6.4.1).
3.7 Shear pin strength. The shear pin, after application of protective finish, shall shear
when a load of 55 4 pounds is applied at the steady rate of 0.125 inch per minute.
3.8 Metal parts assembly. Parts shall be combined to produce an assembly which conforms to
the requirements of the metal parts assembly drawing and the requirements of 3.8.1 through 3.8.3.
3.8.1 Head and body. The head and body shall be assembled hand tight.
3.8.2 Piston locking spring and end sleeve. The piston locking spring shall enter the spring
hole in the piston without any bending along its entire length. The assembly of the piston locking
spring to the end sleeve, with the cap screw and washer, shall be hand tight. If axial misalignment
of the piston locking spring occurs upon completion of assembly, it will be permissible to back
off the cap screw sufficiently to eliminate axial misalignment of the piston locking spring.
3.8.3 End sleeve rotation. Upon completion of assembly and after the structural strength
test, the end sleeve shall be free to rotate 360 degrees in a clockwise direction.
3.9  Protective finish. Protective finish shall be in accordance with the applicable
specifications and shall apply to all surfaces of the component regardless of contour
configuration.
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