MIL-DTL-9370E
3.
REQUIREMENTS
3.1 Qualification. The valve furnished under this specification shall be products that are
authorized by the qualifying activity for listing on the applicable qualified products list before
contract or award (see 4.2 and 6.3).
3.2 First article inspection. When specified (see 6.2), a sample shall be subjected to first
article inspection in accordance with 4.3.
3.3 Materials. Materials shall conform to applicable specifications and shall be as specified
herein and on applicable drawings. Materials which are not covered by specifications, or which
are not specifically described herein, shall be of the best quality, of the lightest practicable
weight, and qualified for the purpose intended.
3.3.1 Dissimilar metals. Unless protected against electrolytic corrosion, dissimilar metals
specified in MIL-STD-889 shall not be used in intimate contact with each other.
3.3.2 Nonmetallic materials. Any nonmetallic material that is adversely affected by
continued use with air shall not be used.
3.3.2.1 Elastomer components. Elastomer components, except silicon, shall be not greater
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.
3.3.3 Protective treatment. Protective coating which might crack, chip, or scale during
normal service life or under extremes of environmental conditions shall not be used. Materials
shall be protected from deterioration in a manner that will in no way prevent compliance with the
performance requirements of this specification. The deterioration considered is that caused by
exposure to environmental conditions.
3.3.4 Standard parts. Military standard parts shall be used where they are specified.
3.4 Design and construction. The design and construction shall be in accordance with the
applicable dash number of MS24350, as specified in the contract or order (see 6.2). The valve
shall be designed to pass air at a regulated pressure to aircrewmen anti-g suits. The outlet
pressure shall be a function of acceleration force applied to the valve in the direction specified on
MS24350. The design shall enable manual operation of the valve and shall provide means for
applying weights to simulate the acceleration forces specified on figure 1. The valve shall be
designed to perform as specified in 3.5. Moisture in the air source to the valve shall not
adversely affect operation of the valve.
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