MIL-DTL-82929A(OS)
4.3.4.2 Initiator examination. Radiographic examination of initiators shall include x-ray in accordance
with ASTM E 1742. All initiators shall be identified with serial numbers beginning with 001 prior to
examination. The initiators shall be arranged on trays or boards in consecutive numerical order with any
missing serial numbers identified on the radiographic plate. The initiators shall be positioned for the
most revealing exposure with the long axis perpendicular to the radiographic beam. Each radiograph
shall carry a permanent identification of the items displayed thereon in a 4 x 6 inch region maximum.
The radiographic identification shall include the drawing number, the complete lot number in accordance
with MIL-STD-1168, the contract number, the DODIC, and the span of serial numbers displayed.
Radiographs of the entire production lot shall accompany the ballistic sample to the activity conducting
the tests (see 6.2). In addition, a marriage log indicating which delay cartridge serial number is installed
in which initiator serial number shall be provided with radiographs. Any observable imperfections as
outlined in 3.3.2.2 shall be cause for rejection of the delay cartridge assemblies. Defective delay
cartridge assemblies found during radiographic review are to be marked on the radiographic plate and
removed from the production lot.
4.3.5 Demagnetization. Each initiator shall be moved past a pilot's standby compass face (in
accordance with SAE AS 5604) by placing the initiator six inches from the compass set in an east-west
heading. The initiator and the compass shall be placed at the same height from the floor. The initiators
shall be moved past the compass face in a longitudinal direction for its entire length, rotated 90 degrees
in the horizontal position about it's longitudinal axis, and moved back past the compass face. This
procedure shall be repeated for each 90 degrees rotation of the initiator. The initiator shall be acceptable
if the requirements of 3.3.2.3 are met.
4.3.6 Electrical bonding. Sample initiators shall be electrically tested for resistance between the two
end ports of the initiator using a calibrated milliohmeter. Failure of any initiator to comply with the
requirements of 3.3.2.4 shall be cause for rejection of the lot and/or first article.
4.3.7 Threaded joint torque. Sample initiators shall be tested for breakaway torque of threaded joints
using a calibrated torque wrench. Failure of any initiator to comply with the requirements of 3.3.2.5 shall
be cause for rejection of the lot and/or first article.
4.3.8 Vibration test. All six initiators shall be tested as specified in 4.3.8.1 through 4.3.8.2.5. Failure
of any initiator to comply with the requirements of 3.4.1 shall be cause for rejection of the lot and/or first
article.
4.3.8.1 Non-gunfire vibration. The test shall be conducted in accordance with MIL-STD-810B, Table
514.1-I Curve "AT" except that for each cycling period the time shall be divided equally for vibration at
>65, 70 and 200bF. The initiators shall be mounted in the vibration test fixture Drawing 850AS825 for
the JAU-24/A initiator. The non-gunfire vibration test shall be performed on all six initiators. The six
initiators shall be mounted on the test fixture at the same time and one shall be monitored for response
during the test.
4.3.8.2 Gunfire vibration. The gunfire vibration test shall be performed on all six initiators, on each of
the three orthogonal axes, and shall be conducted at 70bF test temperature only. The six initiators shall
be mounted on the test fixture at the same time and one shall be monitored for response during the test.
8
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business