MIL-DTL-8794F
3.5.10 Burst pressure. Hose when tested as specified in 4.8.13, shall not burst or cause adapters to
loosen or separate from the hose, and there shall be no external leakage from the hose or hose-to-
adapter interface, at any pressure up to the burst pressure specified in table II.
3.5.11 Low temperature flexing.
3.5.11.1 Low temperature flexing (hose sizes -3 through -12). Hose sizes -3 through -12 when
tested as specified in 4.8.14, shall be capable of being flexed through 180° of bend in approximately 4
seconds to the bend radius specified in table I at -65 °F (-53.9°C) without leakage.
3.5.11.2 Low temperature flexing (hose sizes -16 and larger). Hose sizes -16 and larger shall be
capable of being flexed through 180° of bend in approximately 4 seconds to the bend radius specified in
table I at -40°F (-40°C) without leakage.
3.5.12 Bulge. When tested as specified in 4.8.15, the bulge of the synthetic rubber tube of the hose
when assembled with adapters conforming to MIL-DTL-5070 shall not reduce the ID of the hose to less
3.5.13 Fuel immersion. When tested as specified in 4.8.16, the hose and the hose-to-adapter
interface shall not leak after immersion in fuels. The hose shall be visually inspected and there shall be
no indication of disintegration, such as ply separation, solubility of component parts, porosity, blistering,
or collapse.
3.5.14 Lubricating oil circulation.
3.5.14.1 Lubricating oil circulation (hose size -3 through -12). Hose size -3 through -12 when tested
as specified in 4.8.17, shall be capable of circulating oil at fluid temperatures up to 250°F (121.1°C) and
under surge conditions of 325°F (162.8°C) without leakage operating at the oil operating pressures
specified in table II.
3.5.14.2 Lubricating oil circulation (hose size -16 and larger). Hose size -16 and larger when tested
as specified in 4.8.17, shall be capable of circulating oil at fluid temperature up to 160°F (71.1°C) and
under surge conditions of 325°F (162.8°C) without leakage while operating at the oil operating pressures
specified in table II.
3.5.15 Volumetric expansion.
3.5.15.1 Volumetric expansion (hose size -3, -4, and -5). Hose size -3 and -4 when tested as
specified in 4.8.18, shall be not greater than .06 cubic centimeter per inch of free length at 1,000 pounds
per square inch (psi) pressure. The volumetric expansion of size -5 hose when tested as specified in
4.8.18, shall be not greater than .08 cubic centimeter per inch of free length at 1,000 psi (68.9 bar)
pressure.
3.5.15.2 Volumetric expansion (hose size -6 and larger). There are no volumetric expansion limits
for size -6 hose and larger.
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