MIL-DTL-83298C
3.6.1.2 Tensile strength. The longitudinal tensile strength for all sizes of tube shall be 2200 psi (15.2
Mpa) minimum, and the transverse tensile strength (-10 size only) shall be 1800 psi (12.4 Mpa) minimum
at 73°F ±4 °F (22.8°C ± 2.2°C). The tensile strength test shall be conducted in accordance with. 4.8.2.2.
3.6.1.3 Elongation. The longitudinal and transverse elongation at 73°F ±4°F (22.8°C ± 2.2°C) shall
be a minimum of 200% when tested in accordance with 4.8.2.3.
3.6.1.4 Electrical conductivity of tube. Tube sizes -4 through -8 when tested in accordance with
4.8.2.4 shall be capable of conducting a current equal to or greater than 6 microamperes. Tube size -10
shall be equal to or greater than 12 microamperes with a test potential of 1,000 volts dc, when tested in
accordance with 4.8.2.4.
3.6.1.5 Tube roll. When tested In accordance with 4.8.2.5, the PTFE inner tube shall meet the gap
dimensions for rolling requirements in accordance with SAE-AS2078. The PTFE inner tube shall not
leak, split, burst, or show any evidence of failure.
3.6.1.6 Tube proof pressure. The tube without any reinforcing wires shall not leak, burst, or show
any evidence of permanent deformation when tested in accordance with 4.8.2.6.
3.6.2 Hose and hose assembly. The hose, when assembled with end fittings in accordance with
MIL-DTL-83296, shall meet the following performance requirements.
3.6.2.1 Proof pressure. There shall be no leakage through the wall of the hose or around the fittings
when the hose assembly is subjected to testing in accordance with 4.8.3.1.
3.6.2.2 Leakage. The hose assembly shall not leak or rupture when subjected the minimum room
3.6.2.3 Burst testing.
3.6.2.3.1 Room temperature burst pressure. The hose assembly shall not leak or rupture at any
pressure below the minimum room temperature burst pressure specified in table I, when tested in
accordance with 4.8.3.3.1.
3.6.2.3.2 High temperature burst pressure. When tested in accordance with 4.8.4.3.2, the hose
assembly shall not leak, rupture, or blow off the hose at any pressure below the minimum high
temperature burst pressure specified in table II.
3.6.2.4 Elongation and contraction. The hose assembly shall not change in length by more than ±.20
inch (5.08 mm) in 10 inches (254 mm) of length when tested in accordance with 4.8.3.4.
3.6.2.5 Stress degradation. The average air effusion shall not exceed 2.0 cc/in/min when tested in
accordance with 4.8.3.5.
3.6.2.6 Impulse. The hose assembly shall not burst, leak, or show evidence of malfunctioning when
subjected to a minimum of 250,000 impulse cycles when tested in accordance with 4.8.3.6.
3.6.2.7 Thermal shock. The hose assembly shall not leak or rupture at any pressure below the
minimum high temperature burst pressure specified in table I, when tested in accordance with 4.8.3.7.
3.6.2.8 Flexibility. The hose assembly shall not leak or show any evidence of malfunction when
tested in accordance with 4.8.3.8.
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