MIL-DTL-83298C
3.3 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or
environmentally preferable materials should be used to the maximum extent possible provided that the
material meets or exceeds the operational and maintenance requirements, and promotes economically
advantageous life cycle costs.
3.4 Design and construction. The hose shall be so designed and constructed that, when assembled
with approved end fittings in accordance with MIL-DTL-83296; the resulting hose assemblies shall meet
the requirements of this specification and MIL-DTL-32330.
3.4.1 Tube. The tube shall be a seamless extrusion of virgin polytetrafluoroethylene resin. Base
resin shall conform to ASTM D4895, except for the specific gravity (SG) requirements. Additives may be
included in the compound from which the tube is extruded.
3.4.1.1 Reinforcement. The reinforcement shall be braided corrosion-resistant stainless steel wire,
uniform in quality and size, and of sufficient strength to insure that the hose shall meet the requirements
specified herein. There shall be no broken or spliced reinforcing wires nor shall any wires be omitted in
any length of hose. Corrosion resistant steel shall be passivated in accordance with SAE-AMS2700,
method 2 (see 6.7.1).
3.4.1.2 Interlayers. Interlayers, if used, shall be resistant to or suitably protected from all fluids with
which the hose may come in contact. They shall be capable of withstanding temperature and pressures
specified in table I. Interlayers shall not extrude through the outer braid.
TABLE I. Performance requirements of hose. 1/ 2/
Min. burst
Min. burst
Maximum
Proof
Size
Hose
pressure at
pressure at
operating
pressure
dash
dia.
pressure
room temp
high temp
no.
fraction
psi
MPa
psi
MPa
psi
MPa
psi
MPa
-4
1/4
3,000
21
6,000
41
16,000
110
12,000
83
-6
3/8
3,000
21
6,000
41
14,000
97
10,500
72
-8
1/2
3,000
21
6,000
41
14,000
97
10,500
72
-10
5/8
3,000
21
6,000
41
12,000
83
9,000
62
TABLE I. Performance requirements of hose - Continued. 1/ 2/
Min. bend
Hydraulic
Size
Volume
Pneumatic
radius
temperature
dash
expansion
temperature
(inside of bend)
range
no.
(cc/in.)
range
inches (mm)
°F (°C)
-4
3.00 (76.2)
.065
-65°F to
-6
5.00 (127)
.085
-65°F to+160 °F
+400°F
-54°C to 71°C
-8
5.75 (146)
.135
-54°C to 204°C
-10
6.50 (165)
.220
1/ Dimensions are in inches.
2/ Metric equivalents are given for information only.
3.4.2 Hose end fittings. Hose end fittings required to test hose assemblies to the requirements of
this specification shall conform to MIL-DTL-83296 and the applicable detail specification sheet.
3.4.3 Dimensions. The hose dimensions shall be as specified in table II.
4
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