MIL-DTL-6396F
If, during the production of cells, the weight is consistently greater than the tolerance on one side
of the production weight, the procuring activity shall be informed, and all pertinent data shall be
supplied including a recommendation for a new production weight, the reason for exceeding the
weight tolerances, and a log of the tank or cell weight for review and establishment of a new
production weight.
3.6 Construction.
3.6.1 Installation mountings. Provisions shall be made for installation mounting of the
tank(s) with the following interfaces:
3.6.1.1 Bosses. Fittings shall conform to best commercial practices consistent with meeting
design requirements of the tank. Tanks shall not leak.
3.6.1.2 Sealing torque. The fitting(s) shall provide a fluid tight seal with application of the
appropriate tightening torque as specified in table I.
3.6.1.3 Threaded holes. All threaded bolt holes shall be blind and shall incorporate
replaceable or repairable self-locking steel inserts.
3.6.1.4 Inserts. Each insert shall be provided with a locking device. The locking device
shall not damage the fastener or insert. The insert and locking device shall be capable of a
minimum of 50 installation and removal cycles before replacement is required. The fitting and
insert shall be designed so that damage beyond repair to the fitting or insert shall not occur when
the maximum allowable torque as specified in table I is applied on a bolt that is bottomed out
against the bottom of the bolt clearance hole or tapped hole or when applied against a bolt that is
shanked out against the top thread of the bolt.
3.6.2 Screw threads. Screw threads shall be in accordance with SAE-AS8879.
3.6.2.1 Pipe threads. The use of pipe threads is prohibited.
3.6.2.2 Locking of threaded parts. All threaded parts shall employ self-locking features.
Staking and the use of lock washers shall not be permitted.
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