MIL-DTL-5593E
3.4.7 Flexibility. When tested as specified in 4.6.8, the hose shall bend so that the weighted end of
the hose drops to a position that is not lower than the fixed end.
3.4.8 Kinking. When tested as specified in 4.6.9, the hose shall not kink or show any evidence of
deterioration.
3.4.9 Vacuum collapse. When tested as specified in 4.6.10, the decrease in the outside diameter of
the bent hose shall be not greater than 20% of the original outside diameter.
3.4.10 Low temperature flexibility. When tested as specified in 4.6.11, the hose shall not leak or
crack.
3.4.11 Water and alcohol resistance. When tested as specified in 4.6.12, the tensile strength loss of
the inner tube and the outer cover shall be not greater than 35%.
3.4.12 Oil resistance. When tested as specified in 4.6.13, the tensile strength loss of the inner tube
shall be not greater than 35% and its elongation loss shall be not greater than 50%.
3.5 Marking. The hose shall be marked on the outer cover in, parallel to the bore, with the following
a.
Capital letters "LP" (low pressure).
b.
Specification number PIN.
c.
Date of manufacture (quarter of year and year).
d.
Manufacturer's Commercial and Government Entity (CAGE) code.
Example: Size -4 hose (1/4 inch (.250 inch (6.35 mm) diameter) 8 feet long manufactured during the
fourth quarter of 2005 shall be marked as;
LP-M5593-4-0960-4Q05-XXXXX
3.5.1 Marking color. The marking color shall be yellow, color 13538 in accordance with
FED-STD-595 (gasoline, oil, and water resistant), legible with normal vision at a minimum distance of 3
feet (0.91 m), and shall be repeated every 12 inches (30.5 cm) or less along the entire length of the hose.
The marking shall withstand the tests as specified in SAE-ARP6002.
3.6 Age. The bulk hose that is covered by this specification shall not exceed the age limits as
specified in SAE-AS1933.
3.7 Workmanship. Hose shall be manufactured and processed in such a manner as to be uniform in
quality and shall be free from foreign material and other defects that will affect life, serviceability, strength,
assembly or durability (see table II). Workmanship shall be such as to enable the hose to meet the
applicable performance requirements of this specification.
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