MIL-DTL-43607J
3.6.3.12 Control key. The control key shall lock and unlock the padlock, and also rotate the cylinder
plug to the control position to enable removal of the cylinder as specified in 3.6.3.2 (see 4.5.1.15).
3.6.3.13 Key serial numbers. Serial numbers of keys shall be placed on a metal tag affixed to the
key ring. The serial number shall not be stamped or appear anywhere on the key. The serial number
shall be stamped on the tag with characters not less than 0.094-inch (2.38 mm) in height. The serial
number shall not in any way disclose the key bitting either directly or by commercially available or
published coding.
3.6.4 Appurtenances, slides, or covers. Appurtenances, slides, or covers that may be incorporated in
the padlock shall be secure when the locking mechanism is in the locked or unlocked positions. The
removal of any appurtenance, slide, or cover shall not be possible, except with the control key in the
control position or by disassembly of the padlock (4.5.1.1).
3.6.4.1 Keyway cover. Any keyway cover or plate shall remain aligned with the keyway. There
shall be no keyway cover or obstruction which requires any special action or separate maneuver by
the padlock user before a key can be inserted in the keyway (see 4.5.1.14).
3.7 Lubrication. The padlock shall be lubricated with molybdenum disulfide powder conforming to
AMS-M-7866 applied sparingly to the internal parts of the cylinder. Other moving parts may be
lubricated by applying a thin film of lubricant conforming to MIL-G-21164.
3.8 Color and finish. The color of the padlock shall be the natural color of the finish. All surfaces
shall have a uniform finish of sufficient smoothness to accept the required marking. When corrosion
protection is required for the padlock body or shackle, the finish shall be limited to chromium plating
in accordance with AMS-QQ-C-320, class 1, type II, or nickel plating in accordance with AMS-QQ-
N-290, class 2 except that the finish shall be dull or satin.
3.9 Identification marking. The body of the padlock shall be marked with the letters "US," the
manufacturer's name or trademark, some traceable model identification, and the year of manufacture.
The markings may be stamped, rolled, cast, or applied in any other manner that will ensure legibility
after the padlock has been exposed to the testing specified herein.
3.9.1 Prohibited marking. There shall be no markings on the padlock exterior which would aid in
the unauthorized opening of the padlock.
3.10 Instructions. Operating and maintenance instructions shall be furnished with each padlock.
3.11 Workmanship. The padlock and keys shall be free from sharp edges, burrs, and slivers that
affect serviceability or appearance.
4. VERIFICATION
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