MIL-DTL-46083D(MR)
4.3.1 First article inspection.
First article inspection shall consist of
the following:
a.
Chemical analysis (see 3.2 and 4.7.1).
b.
Mechanical properties (see 3.3 and 4.7.2).
c.
Ballistic tests (see 3.4 and 4.7.3).
d.
Dimensions (see 3.6 and 4.6.2).
e.
Identification marking (see 3.7, 3.7.1 and 4.6.1).
f.
Workmanship (see 3.9 and 4.6.1).
4.3.2 Conformance (acceptance) inspection.
Lot acceptance inspection shall
consist of the following:
a.
Chemical analysis (see 3.2 and 4.7.1).
b.
Mechanical properties (see 3.3 and 4.7.2).
c.
Ballistic tests (see 3.4 and 4.7.3).
d.
Dimensions (see 3.6 and 4.6.2).
e.
Identification marking (see 3.7, 3.7.1 and 4.6.1)
f.
Workmanship (see 3.9 and 4.6.1).
g.
Preparation for shipment (see section 5).
4.4 Lot. A lot shall consist of finished extrusions, of the same class, shape,
dimensions, alloy and temper, which are submitted for inspection as a unit, at
essentially the same time and have a total weight of 25,000 pounds or less.
4.5
Sampling.
4.5.1
First article testing.
a. Chemical composition. Samples for chemical analyses shall be removed
from each extrusion selected for ballistic test. A certification of the
chemical composition of the alloy shall be furnished with the test extrusions.
b. Mechanical properties. One tension test specimen for first article
shall be removed from each extrusion that has been selected for ballistic
test. Location and type of specimen shall be as specified in 4.7.2.
c. Ballistic tests. At least two extruded samples having sufficient area
for performance of the ballistic test shall be submitted for each designated
thickness and extruded shape shown on the drawing and which the manufacturer
has under contract. Because of the variety of possible shapes and sizes, the
manufacturer must contact the ballistic test agency to determine the minimum
number needed to satisfactorily conduct the ballistic tests.
4.5.2
Acceptance lots.
a. Chemical composition, ingot analysis. At least one sample shall be
taken from the molten metal representing the ingots poured from the same
source of molten metal. Complete ingot analysis records shall be available to
the Government at the producer's facility.
b. Chemical composition, finished product analysis. When sampling has
not been made in accordance with 4.5.2 a., one sample shall be randomly taken
for each 4,000 pounds (or less) of every lot in accordance with ASTM E716 or
ASTM E34.
c. Mechanical properties. Unless otherwise specified (see 6.2) from
material having a nominal weight of less than one pound per lineal foot, one
tension test sample shall be selected from each inspection lot weighing l,000
pounds or less; from inspection lots weighing more than 1,000 pounds, one
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