MIL-DTL-62006C(AT)
3.4.1 Leakage. Cooler assemblies and cores shall not leak when subject to 400 pounds
per square inch (psi) of hydrostatic pressure for at least 10 minutes, and 15 000 hydraulic pressure
cycles from 0 to 300 psi.
3.4.2 Heat rejection. Heat rejection for the cooler assemblies and cores shall be not less
than as specified in table II.
TABLE II. Heat rejection for engine and transmission cooler cores and assemblies.
Heat rejection-British thermal units (Btu)
(kiloJoules/minute)
Type
Class
(see 1.2)
(see 1.2)
Engine
Transmission
I
A
2729 (2880)
---
B&C
---
6484 (6840)
II
D
1354 (1430)
1643 (1735)
E
1266 (1335)
1563 (1650)
III
F&G
5280 (5570)
9525 (10050)
3.5 Support and ownership requirements. Cooler assemblies and cores shall possess the
following life cycle ownership characteristics.
3.5.1 Safety. Cooler assemblies and cores shall not produce any hazards to personnel or
the environment resulting from the use of asbestos, cadmium, radioactive materials, toxic
chemicals, or other hazardous substances.
3.5.2 Contamination resistance. Cooler assemblies and cores shall withstand a jarring
drainage of mineral spirits without evidence of loose particles.
3.5.3 Identification marking. Unless otherwise specified (see 6.2), the cooler assemblies
and cores shall be marked with the National Stock Number (NSN), the manufacturer's
identification code (CAGE), and the part or identifying number (PIN) (see 6.5). Marking shall be
permanent and legible.
3.6 Operating environment requirements. Cooler assemblies and cores shall withstand
vibration through the frequency range as specified in figures 1 and 2.
4. VERIFICATION
4.1 Classification of inspection. The inspection requirements specified herein are
classified as follows:
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