MIL-DTL-3992F
4.8.3.3 Elongation and contraction (see 3.7.2.3). Test specimens 18-inch (457.20 mm) length when
subjected to the elongation and contraction test in accordance with ASTM D622 shall meet the
requirements of 3.7.2.3.
4.8.3.4 High-temperature resistance test (see 3.7.2.4). Test specimens when tested in accordance
with the high-temperature resistance test of SAE-J1402 shall meet the requirements of 3.7.2.4.
4.8.3.5 Low-temperature resistance test (see 3.7.2.5). Test specimens when tested in accordance
with the low-temperature resistance test of ASTM D622 shall meet the requirements of 3.7.2.5. The
following details shall apply:
a. Condition the specimens at -65°± 2°F (-53.89°C ± 1.11°C) for 70 ± 2 hours.
b. Test each sample in accordance with ASTM D622.
4.8.4 Test requirements applicable to type II vacuum brake hose and hose assemblies.
4.8.4.1 Aging test (see 3.7.3.1). Test specimens in accordance with ASTM D622 shall meet the
requirements of 3.7.3.1.
4.8.4.2 Cold test (see 3.7.3.2). Test specimens when tested as specified in ASTM D622 shall meet
the requirements of 3.7.3.2.
4.8.4.3 Collapse resistance (see 3.7.3.3). Test specimens in accordance with ASTM D622 shall meet
the requirements of 3.7.3.3.
4.8.4.4 Hot vacuum collapse and degradation (see 3.7.3.4). When test samples (see table VI) are
subjected to the hot vacuum collapse and degradation as specified in SAE-J1403 the test specimens
shall meet the requirements of 3.7.3.4.
4.8.4.5 Bend collapse test (see 3.7.3.5). Test specimens subjected to the bend collapse test in
accordance with ASTM D622 shall meet the requirements of 3.7.3.5.
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 which may be helpful, but is not
mandatory.)
6.1 Intended use. Hose and hose assemblies covered by this specification are intended for use as
flexible connections in air or vacuum brake systems on automotive vehicles.
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