MIL-PRF-87961B
4.6.15 Age. The age of the hose shall be verified to be no more than 12 months from the
cure date to the acceptance date in accordance with SAE-AS1933.
4.6.16 Ozone resistance test. Samples of elastomer and end cover materials shall be
tested in accordance with ASTM-D1149 (see 6.3). The test samples shall be elongated 20%,
placed in an ozone-free atmosphere for 24 hours, and then subjected to an ozone environment.
The temperature shall be 100o +2oF, an ozone concentration of 120 +1 parts per million by
volume, and the air velocity across the sample shall be at least 2 feet per second. The material
shall be exposed to these conditions for 60 minutes. The test slabs shall be examined under 10X
magnification for evidence of damage such as blooming, checking, or cracking.
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. The hose assembly covered by this specification is for supplying
breathing oxygen to aircrew members during the operation of aircraft. The hose assembly
extends from the breathing regulator to the application connector. These hose assemblies are part
of the Aircraft Life Support System..
6.2 Acquisition requirements. Acquisition documents should specify the following:
a.
Title, number, and date of this specification.
b.
Type and PIN (see 1.2 and 6.10).
c.
When the first article is required (see 3.1).
d.
Color of the end cover (see 3.4.1).
e.
Item identification (see 3.5.17 item a and c).
f.
The requirement for the vendor to identify proposed cleaning and verification
methods (see 4.6.3).
g. Packaging requirements (see 5.1).
h. Data required.
6.3 Materials. Previously, material certification sheets were used to validate the
contractor's material selection.
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