MIL-T-46616C
the same height as the compass, in the north-south horizontal position (head end at south) with the compass set in an east-west heading. The assembly shall be moved at a speed no greater than 10 feet per minute past the compass for its entire length, rotated 90 degrees in the horizontal position about its longitudinal axis, and moved slowly back past the compass. This procedure shall be repeated for each 90 degree rotation of the assembly for four full passes.
4.3.3 Radiographic examination. All assembled thrusters shall be radiographically examined in accordance with MIL-STD-453, with the exception that an thruster assembly will be used for the penetrameter. Any observable imperfections in components or assembly shall be cause for rejection. The thrusters shall be positioned for the most revealing exposure, with the long axis of each assembly perpendicular to the rays of the X-ray machine. All thrusters shall be identified with serial numbers prior to X-ray examination. The serial numbers shall be in consecutive order beginning with the number 001 in each production lot. Any missing numbers are to be identified on the X-rays. The thrusters shall be arranged on trays or boards in consecutive numerical order, and each radiograph shall carry a permanent identification of the units displayed thereon. The radiographic plate identification shall include item nomenclature, the complete lot number, the span of serial numbers displayed, and the contract number. The radiographs of the entire production lot shall accompany the ballistic sample to the activity conducting the production lot acceptance test. Defective thrusters found during X-ray review are to be marked on the X-ray prior to shipment and those defective items shall be removed from the production lot. Film interpretation of the radiographs shall verify the presence and correct positioning of the following parts:
a. Breech, PIN 8594496
b. Setscrew, PIN 10543068-1 c. Shear Pin, PIN 8594506
d. Firing Pin, PIN 8594744
e. Cartridge Retainer, PIN 8594503
f. Cartridge, Impulse M44A1, PIN 8593276 g. 0-ring (1 each), MS28775-009
h. 0-ring (1 each), MS28775-017 i. 0-ring (1 each), MS28775-012 j. 0-ring (2 each), MS28775-112 k. Piston Rod, PIN 8594494
l. Piston Locking Spring, PIN 8594504 m. Key (3 each), PIN 8594498
n. Body Assembly, PIN 10522633 o. Cap, End, PIN 10522634
p. Sleeve End, PIN 8594497 q. Trunnion, PIN 8594501
4.3.4 Functional.
4.3.4.1 Ballistics. The test sample shall be rigidly supported so that the entire thrust is borne by the thruster mounting points. The samples shall be tested within 10 minutes after removal from the temperature conditioning chamber. When this time limit is exceeded, the sample units shall be reconditioned at the original temperatures.
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