MIL-PRF-25478D
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as
specified in the contract or order (see 6.2). When packaging of materiel is to be performed by
DoD or in-house contractor personnel, these personnel need to contact the responsible packaging
activity to ascertain packaging requirements. Packaging requirements are maintained by the
Inventory Control Point's packaging activities within the Military Service or Defense Agency, or
within the military service's system commands. Packaging data retrieval is available from the
managing Military Department's or Defense Agency's automated packaging files, CD-ROM
products, or by contacting the responsible packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is
not mandatory.)
6.1 Intended use. Oil coolers covered by this specification are intended for use in
aircraft piston and jet engine lubricating oil, turbo-propeller gear box oil, and helicopter
transmission gear box oil systems.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a.
Title, number, and date of this specification.
b.
Type designation (see 1.2).
c.
Associated specifications or specification sheets (see 3.1).
d.
When first article is required (see 3.2 and 4.2).
e.
Lubricating oil (petroleum or synthetic base) to be used for testing and preservative
compounds (see 3.5.1, 4.4.2, 4.6.9.1, and 4.6.9.2).
f.
If component parts differ from that specified (see 3.6).
g.
Oil temperature at oil cooler outlet (see 3.6.3).
h.
Pressure relief setting (see 3.6.3).
i.
Overall dimensions and weight (see 3.7.2).
j.
Whether the hydrostatic pressure requirement is 100 ± 10 psi, 200 ± 10 psi or 400 ±
20 psi (see 3.8.1 and 4.6.3).
k.
If the oil pressure drop through the bypass warm-up passage is other than 8 psi
(see 3.8.2 and 4.6.5).
l.
If the pressure drop across the oil cooler is other than 20 psi (see 3.8.3 and table II).
m.
Oil scavenging pump system maximum pressure (see 3.8.4 and 4.6.5).
n.
Rated oil flow requirement (see 3.8.7.1, 4.6.5, and 4.6.7).
o.
Rated air flow requirement (see 3.8.7.2).
p.
Air inlet temperature requirement (see 3.8.7.3).
q.
Total heat rejection requirement (see 3.8.7.3, and 4.6.4).
r.
If the direction of air flow is different than specified (see 3.8.8).
s.
Item identification (see 3.11 items a, c, and d).
t.
Sampling inspection level (normal, tightened, or reduced) (see 4.3.2).
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