MIL-DTL-17505F
3.12 Adhesion. The adhesion between the component parts of the hose shall conform to the
requirements listed in table III, when tested as specified in the referenced paragraphs.
TABLE III. Minimum loads for adhesion test.
Adhesion
Pounds-force per inch
Reinforcement
Test
(lb-f/in) (kPa) minimum
Tube
Cover
plies
paragraphs
Initial
23
23
23
4.7.14
(159 kPa)
(159 kPa)
(159 kPa)
After filling
17
17
17
4.7.15
(117 kPa)
(117 kPa)
(117 kPa)
3.13 Ozone resistance of hose cover. The cover stock of the hose at the end of the exposure
time (see 4.7.13) shall show no visible cracking under 7X magnification.
3.14 Identification marking. Each length of hose shall be branded with manufacturer's name and
trademark and the month and year of manufacture. The words "Oil and Gasoline Suction and
Discharge 150 psi" (1 034 kPa) shall be inlaid in the cover and vulcanized thereto. Hose 25 feet
(7 620 mm) or greater in length shall have brands inlaid in the cover at two places on each length
beginning 4 feet (1 219 mm) from the ends. The letters shall be not less than 0.250-inch (6 mm)
high. Hose less than 25 feet (7 620 mm) in length shall have one inlaid brand approximately in the
center.
4. QUALITY ASSURANCE PROVISIONS
4.1 Classification of inspection. The inspection requirements specified herein are classified as
follows:
a. First article inspection (see 4.2).
b. Conformance inspection (see 4.3).
4.2 First article inspection. The first article inspection shall be performed on one sample hose
length when a first article is required (see 3.1, 6.2, and 6.3). This inspection shall include the
examination of 4.6 and the tests of 4.7. The first article may be either a first production item or a
standard production item from the supplier's current inventory provided the item meets the
requirements of the specification and is representative of the design, construction, and
manufacturing technique applicable to the remaining items to be furnished under the contract. In
addition to the first article, the following shall be submitted: a 2-foot (610 mm) length of hose,
without helix wire for the adhesion test; 6 feet (1 829 mm) of helix wire for tensile strength and
flexibility test; and an 8-foot (2 438 mm) length of hose with couplings for the burst test.
4.3 Conformance inspection. The quality conformance inspection shall include the examination
of 4.6 and the tests of 4.7. This inspection shall be performed on the samples selected in
accordance with 4.5.
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