(Non-Government standards and other publications are normally available
from the organizations that prepare or distribute the documents. These
documents also may be available in or through libraries or other
2.3 Order of precedence. In the event of a conflict between the
text of this specification and the references cited herein (except for
related associated detail specifications, specification sheets or MS
standards), the text of this document shall take precedence. Nothing in
this document, however, supersedes applicable laws and regulations unless
a specific exemption has been obtained.
3.1 Qualification. The oxygen regulators furnished under this
specification shall be products which are authorized by the qualifying
activity for listing on the applicable qualified products list at the time
of award of contract (see 4.3 and 6.4). In addition, the retention of the
qualification for the oxygen regulators on the applicable qualified products
list shall be dependent on periodic verification of continued compliance
with the requirments of this specification (see 4.3 and 4.3.2).
3.2 First article. When specified, an oxygen regulator sample shall
be subject to first article inspection (see 6.5) in accordance with 4.4.
3.3 Selection of specifications and standards. Specifications and
standards for necessary commodities and services not specified herein
shall be selected in accordance with MIL-STD-970.
3.4 Materials. Materials shall conform to referenced specifications
and shall be as specified herein and on referenced drawings. Materals
which are not covered by specifications, or which are not specifically
described herein, shall be of the best quality, of the lightest practicable
weight ana suitable for the purpose intended. Materials that produce toxic
or corrosive substances shall not be used.
3.4.1 Metal parts. All metal parts shall be of a corrosion resistant
material or treated in a manner to render them adequately resistant to
188.8.131.52 Dissimilar metals. Unless suitably protected against
electrolytic corrosion, dissimilar metals shall not be used in intimate
contact with each other. Dissimiliar metals are defined in MIL-STD-889.
3.4.2 Nonmetallic materials. Any nonmetallic material that is
adversely affected by continued use with oxygen shall not be used.
184.108.40.206 Age. Elastomer components, except silicone, shall not be
more than 12 months old from the date of manufacture to the date of delivery
to any Government service or to any airframe or accessory manufacturer.
220.127.116.11 Elastomer components. The elastomer components shall be
composed of an ozone-resistant composition, which shall not bloom, and shall
meet the specified ozone-resistant performance requirements.