MIL-PRF-46108C
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 transparent armor covered by this specification has military unique ballistic requirements
and is intended to be used in military aircraft, ships, tactical vehicles, or other applications requiring protection
against a variety of ballistic threat projectiles. Transparent armor constructions provide protection ranging from
small caliber handguns to military rifles, and fragmentation from exploding ordnance.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a. Title, number, and date of the specification.
b. Issue of DoDISS to be cited in the solicitation, and if required, the specific issue of individual
documents referenced (see 2.2.1 and 2.3).
c. Pre-production sample, if required (see 3.1).
d. First article, if required (see 3.1.1).
e. Whether the material is to be specified (see 3.2.2).
f. Glass requirements (see 3.2.3).
g. Spall resistant ply, if required (see 3.2.4).
h. Size and shape of the transparent armor (see 3.2.5).
i. Acceptable value for areal density (see 3.3).
j. Ballistic limits are to be specified by the end user (see 3.4).
k. Luminous transmittance and haze requirements (see 3.5.1).
l. Optical deviation requirements (see 3.5.2).
m. Optical distortion requirements (see 3.5.3).
n. Birefringence requirements and whether the photoelastic measurements of birefringence and residual
strains are to be specified (see 3.5.4).
o. Area to be concealed at assembly (see 3.7).
p. Whether specific requirements pertaining to minor imperfections are to be specified (see 3.8).
q. Whether the method of manufacture for the pre-production sample is to be specified (see 4.2.1).
r. Whether inspection is carried out by the contractor under Government surveillance (see 4.2.2).
s. Number of samples to be inspected from the initial production lot (see 4.2.5).
t. Number of samples to be inspected from the production lots after the initial production lot (see 4.2.6).
u. Acceptance requirements prior to shipment of the lot of armor, if different (see 4.2.7).
v. Packaging requirements (see 5.1).
6.3 History.
6.3.1 Classification. The following historical information documented in the detailed version of this specification,
MIL-A-46108B, classified transparent armor constructions as follows:
Type I
- Glass/plastic laminated construction - consists of one or more plies of glass as an exterior
surface bonded to a plastic backing material.
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