MIL-DTL-24695 Valve, Hose Assembly, And Adapter, Vent And Test Hydraulic Service, General Specification ForThis specification covers vent and test valves, hose assemblies, and adapters suitable for hydraulic service to a maximum operating pressure of 310 bars [4,500 pounds per square inch \(lb/in2\)].

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MIL-DTL-24695C(SH)

3.5.2.2 Flexibility. The hose assembly shall exhibit no evidence of permanent deformation when pressurized to

310 bars (4,500 lb/in2) operating pressure at a bend radius of 40 millimeters (1.57 inches) (see 4.2.4.3).

3.5.2.3 Leakage. The hose assembly shall show no sign of leakage after 2 hours under an operating pressure of

310 bars (4,500 lb/in2) (see 4.2.4.4).

3.5.2.4 Burst pressure. The hose assembly shall withstand a burst pressure of 1,240 bars (18,000 lb/in2) with

no sign of leakage (see 4.2.4.5).

3.5.3 Adapters.

3.5.3.1 Proof pressure. The adapter shall withstand a proof pressure of 465 bars (6,750 lb/in2) without

permanent deformation or damage (see 4.2.5.2).

3.5.3.2 Operation. The torque required to couple hose assembly to the adapter shall not exceed

2.0 Newton meters (18 inch-pounds) (see 4.2.5.4).

3.5.3.3 Leakage. The adapter shall show no sign of leakage after 2 hours under an operating pressure of

310 bars (4,500 lb/in2) (see 4.2.5.3).

3.5.3.4 Burst pressure. The adapter shall withstand a burst pressure of 620 bars (9,000 lb/in2) without any sign

of rupture or permanent deformation (see 4.2.5.5).

3.6 Marking. Each valve and each hose assembly shall be identified with a metal or plastic tag (see 4.2.3.1 and

4.2.4.1) bearing the following information:

Manufacturer s name, trademark, or logo.

Specification sheet part number.

Manufacturer s part number.

Assembly date (by quarter and year).

3.7 Interchangeability. In no case shall parts be physically interchangeable or reversible unless such parts are

also interchangeable or reversible with regard to function, performance, and strength (see 4.2.3.1).

3.8 Workmanship. Vent and test valves, hose assemblies, and adapters shall be free from porosity, roughness,

or any other defect which might affect their serviceability (see 4.2.3.1, 4.2.4.1, and 4.2.5.1).

4. VERIFICATION

4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:

Qualification inspection (see 4.2).

Conformance inspection (see 4.3).

4.2 Qualification inspection. Qualification inspection shall be conducted at a laboratory approved by the Naval

Sea Systems Command (NAVSEA). Qualification inspection shall consist of the tests and examinations as specified

in 4.2.1 through 4.2.6 and shall be conducted in the order as shown in tables I, II, and III unless otherwise approved

by the qualifying activity.