MIL-DTL-27516G
4.5.2.2 Production lot. A production lot shall consist of all products of the same PIN which have been
manufactured under the same conditions and on the same continuous run.
4.5.2.3 Inspection sample. The inspection sample shall be product selected at random from the
production lot without regard to quality.
4.6 Tests.
4.6.1 Examination of products. The hose or hose assembly shall be examined for the following:
a. Dimensions, length and weight not as specified (see 3.4).
b. Materials not as specified (see 3.2).
c. Hose construction not as specified (see 3.3.1).
d. Couplings not as specified (see 3.3.2).
e. Identification marking missing, illegible, or not as specified (see 3.6).
f. Age (see 3.7).
g. Workmanship not as specified (see 3.8).
4.6.2 Adhesion between inner tube and outer cover (see 3.5.1). Hoses when subjected to adhesion
testing shall meet the requirements of 3.5.1. The following details shall apply:
a. A 12-inch (305 mm) length of hose shall be capped with leak proof plugs and filled with fluid in
accordance with ASTM D471, reference fuel B.
b. The filled specimen shall be aged at 75 ±5°F (24 ±3°C) for 48 hrs.
c. Within 15 minutes after removal of the fluid, ring specimens shall be obtained from the center of
the hose length and tested in accordance with ASTM D413.
4.6.3 Volume increase (see 3.5.2). Specimens of the tube and cover when subjected to volume
increase testing shall meet the requirements of 3.5.2. Specimens of the tube and cover shall be tested in
accordance with method 6211 of FED-STD-601, except that the immersion fluid used shall conform to
ASTM D471, reference fuel B.
following details shall apply:
a. Testing shall be conducted in accordance with ASTM D412.
b. The tube and cover test specimens shall be obtained using die C.
c. Immersion shall be for 48 hours at 75 ±5°F (24 ±3°C) in fluid in accordance with ASTM D471,
reference fuel B.
d. Testing shall be conducted within 5 minutes after removal from the fluid.
4.6.5 Pull resistance (see 3.5.5). One hose assembly shall be pull resistance tested and meet the
requirements of 3.5.5. The following details shall apply:
a. One coupling of a 15-inch (381 mm) hose assembly held securely while a pull is applied to the
other coupling by any convenient means.
b. The separation rate between the couplings shall not be less than 1 in/min (25.4 mm/min) until a
load of 1000 lb (453.6 kg) has been reached.
c. Couplings used for testing shall be dependent on the hose assembly being subjected to first
article testing the hose assembly, shall be tested with either two unisex couplings in
accordance with A-A-59377 or SAE-AS38404 on one end and A-A-59326 on the other end.
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