MIL-DTL-17505 Hose And Hose Assembly, Rubber, Oil And Gasoline, Suction And DischargeThis specification covers smooth-bore hose and hose assemblies for suction and discharge service in the transfer of fuels, such as Navy special fuel oil, diesel fuel, oil, jet fuel \(JP-5 or JP-8\), motor gasoline, and aviation gasoline. The hose is intended to handle petroleum products having an aromatic content no greater than 30 percent. The maximum working pressure of this hose is 150 pound-force per square inch \(psi\) \(1 034 kilopascal \(kPa\)\).

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MIL-DTL-17505F

3.4.1 Hose body. In addition to the description of materials specified in table II, the body of the

hose shall consist of the following:

a. A synthetic rubber inner tube, properly compounded to resist motor gasoline, aviation

gasoline, jet fuel (JP-5 or JP-8), petroleum oils, and salt water, as noted in 1.1 and as

specified in 3.2.1.

b. Reinforcement shall consist of either braided or spiraled yarn or multiple plies of cord or

woven fabric.

c. A helix of round wire or wires thoroughly embedded in synthetic rubber, as specified

in 3.2.1, and connected to the hose nipple by a suitable wire to ensure static bond.

d. Reinforcement as described under b. shall be applied over the helix or wire.

e. An oil- and abrasion-resistant synthetic rubber cover compounded in accordance

with 3.2.1 to give maximum resistance to oil, abrasion, oxidation weathering, and sunlight

aging.

3.4.2 Tube and cover. The tube shall be smooth and free from pitting. The tube and cover shall

be of uniform thickness and free from foreign substances. Phosphate plasticizers shall not be used

in this product. The gage shall be in accordance with table II.

3.4.3 Rubber filling strip. The space between adjacent wires shall be filled with strips of a

synthetic rubber compound.

3.4.4 Hose ends.

3.4.4.1 Hand-built wire reinforced construction. Hose ends on the hand-built wire reinforced

hose shall be capped by application of the synthetic rubber compound used in the cover of the

hose. The end configuration may be square, using the cover compound for a cap, or the end may

be tapered so the cover compound will continue to the hose nipple. Each length of hose shall be

fitted with either a nipple with flanges attached or swaged-on permanent-type couplings with

flanges attached. Unless otherwise specified (see 6.2), the 4-inch (102 mm) size shall have

integral swivel couplings (male and female) attached.

3.4.4.2 Horizontal braided/spiraled wire reinforced construction. Hose ends on the horizontal

braided/spiraled-wire reinforced hose shall be sealed using the same compound used in the cover

of the hose. Each length of hose shall be fitted with swaged-on permanent-type couplings, and

shall have flanges attached thereto (see 6.5).

3.4.5 Textile reinforcement. Cotton or synthetic cord or woven fabric shall be free from

unsightly defects, dirt, knots, lumps, and irregularities of twist.