MIL-DTL-46063H
6.
NOTES
(This section contains information of a general or explanatory nature that
may be helpful, but is not mandatory.)
6.1 Intended use. The aluminum alloy armor covered by this specification
is military unique. This material has minimum ballistic limit protection
requirements as specified in tables A-I through A-VI. The material will be used
in military vehicles to protect the operator and passengers against small arms
fire and shrapnel.
6.2
Ordering data.
Acquisition documents should specify the following:
a. Title, number, and date of this specification.
b. Nominal thickness of aluminum armor plate (see 1.1).
c. Issue of DoDISS to be cited in the solicitation, and if required, the
specific issue of individual documents referenced (see 2.2.1, 2.3 and A.2.1.1).
d. When first article is required (see 3.1).
e. Mechanical properties and chemical composition of aluminum armor
(see 3.2 and 3.3).
f. When stress corrosion testing is required (see 3.4).
g. Drawings, dimensions, and tolerances (see 3.7 and 3.7.1).
h. Marking for identification (see 3.8).
i. Destination of test samples (see 4.2).
j. Locations of tension test specimens (see 4.5.2.3).
k. Locations for determination of ballistic limits (see 4.5.2.5).
l. Rejection and retest requirement, if other than in 4.8.
m. When reduced testing is approved (see 4.9).
n. Packaging requirements (see 5.1).
6.2.1 Armor material test reports. When this specification or specification
requirements are used in an acquisition, and data are required to be delivered,
the data requirements identified in 3.9 should be developed and delivered in
accordance with the approved Contract Data Requirements List (CDRL), incorporated
into the contract. The data specified should be delivered by the contractor in
accordance with the contract or purchase order requirements.
6.3 Chemical analysis. ASTM methods that can be used for determination of
chemical composition are listed in 4.7.1.
6.4 Stress corrosion. It should be noted that a structure built from plate
meeting the requirements prescribed herein should have susceptibility to stress
corrosion minimized by proper attention to design and fabrication characteristics.
The stress corrosion susceptibility of plate meeting the requirements of this
specification will represent a hazard, especially in the short transverse
direction. Exposed short transverse sections should be considered carefully in
design and protected by special fabrication practices to guard against cracking.
6.5 Mechanical properties to ballistic requirements. The minimum mechanical
properties specified (see 3.3) may not assure aluminum armor plate meeting the
specified ballistic requirements (see 3.6).
6.6 Stress corrosion test. The manufacturer may, at his own risk, ship
material prior to the completion of the stress corrosion test.
6.7 New contracts sponsored by government agencies. At the time that a new
contract is initiated for the production of combat vehicles, the contractor's
supplier is to estimate for the contractor the number, size and delivery schedule
of the ballistic test plates which are to be submitted for first article
acceptance testing. A lead time of 60 days after the contract has been signed is
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