MIL-DTL-26633E
4.8.8 Burst (see 3.4.7). The hose assembly when tested in accordance with SAE-AS2078 shall meet
the requirements of 3.4.7.
4.8.9 Impulse (see 3.4.8). Test in accordance with SAE-AS2078. The following details shall apply:
a. The hose assembly shall be fixed in a semicircular position with the longitudinal axes of the
end fittings parallel.
b. The hose assembly shall be visually examined, and then subjected to the leakage test
specified in 4.8.5.
4.8.10 Tensile strength (see 3.4.9). Hose assemblies when subjected to the tensile strength
assembly test shall meet the requirements of 3.4.9. The following details shall apply:
a. The hose assembly shall be placed in a straight position and pressurized to 3,000 psig
(206.84 bar) using a suitable liquid.
b. While pressurized, the hose shall be pulled by the end fittings to 1,000 pounds (453.59 kg)
tensile pull at the rate of 1 inch (2.54 mm) per minute.
c. Any failure below 1,000 pounds (453.59 kg) pull shall be cause for rejection (see 3.4.9).
4.8.11 Overtightening torque (see 3.4.10). Hose assemblies when subjected to overtightening
torque testing shall meet the requirements of 3.4.10. The following details shall apply:
a. The flared end fittings of the hose assembly shall be assembled on a fitting of steel
construction in accordance with SAE-AS4395.
b. The fitting shall be tightened to an over tightening torque of 315 pound-inches (35.59 N m) and
loosened.
c. The tightening and loosening sequence shall be repeated until a total of not less than 15
cycles have been performed.
d. The end fittings shall then be removed and examined for damage.
e Evidence of failure, thread damage, or deformation of the end fitting assembly, or binding or
difficulty in turning the swivel nut on the nipple by hand, shall be cause for rejection.
4.8.12 Cleaning effectiveness (see 3.6.2). Cleaning effectiveness shall be in accordance with
SAE-AS611 class II (quality assurance provisions). If a hose assembly fails any part of the quality
assurance inspections the entire lot shall be rejected. If the lot is rejected, the hose assemblies shall be
recleaned in accordance with 3.6 and a new sample taken for compliance with this test. If the test shows
the cleaning methods to be satisfactory, the hose assemblies shall be cleaned in accordance with
SAE-AS611, class II and preserved and packaged with the remainder of the lot.
5. PACKAGING
5.1 Packaging requirements. For acquisition purposes, the packaging requirements shall be as
specified in the contract or order (see 6.2). When packaging of materiel is to be performed by DoD or
in-house contractor personnel, these personnel need to contact the responsible packaging activity to
ascertain packaging requirements. Packaging requirements are maintained by the Inventory Control
Point's packaging activities within the Military Service or Defense Agency, or within the Military Service's
system commands. Packaging data retrieval is available from the managing Military Department's or
Defense Agency's automated packaging files, CD-ROM products, or by contacting the responsible
packaging activity.
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