MIL-DTL-45300C
4.3 Inspection conditions. Unless otherwise specified (see 6.2), all inspections shall be conducted under the
following conditions:
a. Air temperature 73 + 18°F
b. Barometric pressure 28.5 + 2/ 3 inches mercury (Hg)
c. Relative humidity 50 + 30%
4.3.1 Cleaning. The caps and all cap parts in contact with fuel shall be cleaned prior to tests.
4.3.2 Filler neck. When the use of a filler neck is specified during testing, the filler neck shall conform to MS35644.
4.4 First article inspection. Unless otherwise specified (see 6.2), the Government shall select five (5) sample caps,
of the specified type, produced under the production contract for first article inspection. First article samples shall be
inspected as specified in table I. Approval of the first article sample by the Government shall not relieve the
contractor of his obligation to supply caps that are fully representative of those inspected as a first article sample.
Any changes or deviation of the production units from the first article sample shall be subject to the approval of the
contracting officer. The applicability of cap types to tests shall be as specified in table II.
TABLE I. Classification of inspections.
Conformance
First article 1/
Title
Requirement
Inspection
Examination
Tests
1/
Materials and
3.2 and 3.3
4.6.1
X
Construction
Defects (see
3.3, 3.5
4.6.2
X
X
table III)
thru 3.8
Torque, cap
3.4.1.1
4.6.3.1
X
X
Torque, fording
3.4.1.2
4.6.3.2
X
X
Valve
Leakage
3.4.2
4.6.4
X
X
Pressure relief
3.4.3
4.6.5
X
X
valve opening
Free breathing
3.4.4
4.6.6
X
X
Shear strength
3.4.5
4.6.7
X
X
External pressure
3.4.6
4.6.8
X
X
1/
See table II.
TABLE II. Applicability of cap types to tests.
Tests
Cap type
I
II
III
4.6.3.1
X
X
X
4.6.3.2
X
4.6.4
X
X
X
4.6.5.1
X
4.6.5.2
X
4.6.6
X
X
4.6.7
X
X
X
4.6.8
X
X
4
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