MIL-PRF-46103E
Type IV,
Class 1
- Not less than 3250 ft (991 m) per second against 14.5 mm
hard steel core armor piercing incendiary (API) B32
projectile at zero degrees obliquity.
Type IV,
Class 2
- Not less than 3250 ft (991 m) per second against 14.5 mm
hard steel core armor piercing incendiary (API) BS-41
projectile at zero degrees obliquity.
3.4.2 Ballistic deformation. Unless otherwise specified in the contract or
purchase order (see 6.2), the ballistic deformation of the back surface of the
armor test specimen shall not exceed 1.73 in.(44 mm).
3.4.3 Areal density. The areal density or armor assembly weight shall be as
specified by the procuring activity (see 6.2).
3.5
Environmental requirements.
3.5.1 Vibration. The composite armor shall withstand expected dynamic
vibrational stresses encountered in the service environment.
3.5.2 Temperature. The composite armor shall be both structurally and
ballistically (see 3.4.1) functional within the temperature range -60oF to
160oF (-51oC to 71oC). Composite armor intended for use around hot components
such as engines and transmissions shall also be functional at temperatures up to
320oF (160oC).
3.5.3 Acceleration. The composite armor shall maintain structural integrity
without degradation and shall sustain no physical damage when exposed to
acceleration levels up to 12g.
3.5.4 Fluid resistance. The composite armor shall maintain structural and
ballistic integrity after immersion in jet fuel, oil, and water.
3.5.5 Humidity. The composite armor shall maintain structural integrity without
degradation when exposed to 95% relative humidity.
3.5.6 Adhesion of the spall cover. If a spall cover is to be used there shall
be no visible peeling of the tab formed on the spall cover.
3.6 Identification marking. The manufacturer's code (part) number, contract
number, serial number, date of manufacture, national stock number, type and
class of material, and the number of this specification shall be permanently
marked in the location specified by the procuring activity (see 6.2).
4.
VERIFICATION
4.1 Verification alternatives. Alternative test methods, techniques, or
equipment, including the application of statistical process control, tool
control, or cost effective sampling procedures may be proposed by the
contractor. Acceptable alternative verification approaches shall be identified
in the contract.
4.2 Classification of inspection. The inspection requirements specified herein
are classified as follows:
a.
First article inspection (see 4.2.1)
b.
Conformance inspection (see 4.2.2)
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