MIL-DTL-20176G
shall retain no more than 5 percent change in length or 3 percent change in od after release of the
pressure.
3.6.2 Tensile pull. The hose assembly shall be capable of withstanding a tensile pull of not less
than the loads shown in table III for the applicable size when tested in accordance with 4.6.8.
TABLE III. Physical properties of hose assemblies at temperatures of 70 degrees
Fahrenheit (°F) ± 4 °F (21 degrees Celsius (°C) ± 2 °C).
Flexibility
Test Loads
Pressure psig
Size of hose
(id)
Tensile
Crush
bend radius
Working proof burst
pull
resistance
inches (mm)
(min)
lb (kg)
lb (kg)
inch (mm)
1.5
1,500
225
5.0
150 (1 034 kPa (gage))
(38.10 mm)
(680 kg)
(102 kg)
(127 mm)
300 (2 068 kPa (gage))
600 (4 137 kPa (gage))
2.5
2,000
325
6.0
150 (1 034 kPa (gage))
(63.50 mm)
(907 kg)
(147 kg)
(152 mm)
300 (2 068 kPa (gage))
600 (4 137 kPa (gage))
4.0
2,750
325
9.0
100 (689 kPa (gage))
(101.60 mm)
(1 247 kg)
(147 kg)
(229 mm)
200 (1 379 kPa (gage))
400 (2 758 kPa (gage))
3.6.3 Flexibility.
3.6.3.1 Class 1. A length of hose with no internal pressure applied shall be subjected to the tests
of 4.6.9.1. Hose shall not kink or flatten when subjected to the minimum bend radius given in
table III.
3.6.3.2 Class 2. Hose shall be flexible enough to coil a 50-foot (15 240 mm) hose length into a
diameter of not greater than 3.25 feet (991 mm) (see 4.6.9.2).
3.6.4 Low temperature bend. Specimens of the tube and cover shall not crack when tested as
specified in 4.6.10.7.
3.6.5 Crush resistance, (class 1 only). When hose sections are tested as specified in 4.6.12 to the
loads in table III for the appropriate size, the od shall be not less than 90 percent of the original od
for the 1.5- and 2.5-inch (38 mm and 64 mm) sizes. The od shall be not less than 85 percent of
the original od for the 4-inch (102 mm) size. Following release of the load, the smallest od shall
be not less than 98 percent of the original od (see 4.6.12).
6
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business