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|  MIL-C-70741 (AR)
W/AMENDMENT 2
sampling plan CSP-1, using Sample Frequency Code D with a value of i of 135 consecutive units. The
test shall be performed as specified in 4.5.6.2.
4.4.3.6.3.1 Screw torque test. (See Dwg. 93781661), Major defect. The same containers used
for the air pressure test of the container assembly (4.4.3.6.3) shall be subjected to this test as specified
in 4.5.6.2.1.
4.4.4 Inspection equipment. The inspection equipment required to perform the examinations
and tests prescribed herein is described in the "Paragraph Reference/Inspection Method" column in the
tables starting with 4.4.2.1. and in 4.5. When Automated Acceptance Inspection Equipment is to be
used, the provisions of MIL-A-70625 shall apply. The contractor shall submit for approval inspection
equipment designs in accordance with the terms of the contract. See section 6 of MIL-A-48078 and
6.3 herein.
4.5 Methods of inspection. (See 6.4)
4.5.1 Tensile strength of body material and weld. The tensile strength shall be determined in
accordance with ASTM-E8.
4.5.2 Weld strength of rim to body. The strength of the weld shall be determined in accordance
with ASTM-E8.
4.5.3 Spring embrittlement. The spring shall be repeatedly stretched with increasing loads until
it does not return to its original free height. That point shall indicate minimum distortion. Any unit
which fractures prior to extension to minimum distortion shall be classed defective.
4.5.4 Hardness of spring. The hardness of the spring shall be determined in accordance with
ASTM-E18.
4.5.5 Hardness of gasket. The hardness shall be determined in accordance with ASTM-D2240.
4.5.6 Air pressure test.
4.5.6.1 Air pressure of unpainted cover assembly and unpainted body assembly. Subject the
cover assembly and container body to the specified internal air pressure for the test time specified. For
the cover assembly, apply the pressure when the cover assembly is assembled to a master body
assembly (or its equivalent) equipped with a gasket. For the body assembly, apply the pressure when
the body assembly is assembled to master cover (or equivalent) and gasket. The master cover and the
master body assembly shall be provided with satisfactory means for applying and maintaining the
pressure during the test and for showing evidence of leakage. Observation shall be made for a pressure
drop exceeding the requirement. A cover assembly or body assembly which does not meet the
requirements shall be classed defective.
4.5.6.2 Air pressure of painted container assembly. Subject the painted container assembly to
an air pressure test as specified in the applicable container assembly drawing. A container assembly
which does not meet the requirement shall be classed defective. When cover assemblies or body
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