MIL-R-85523A(AS)
3.4.9 Workmanship. The regulators shall be uniform in quality and shall be free from irregularities, defects, oil, grease or foreign material which could adversely affect safety, performance, reliability, or durability.
3.5 Design and construction. The regulator shall be designed in accordance with envelope drawing 1440AS101. The regulator size shall be not greater than the specified envelope dimensions. A relief valve need not be included in the regulator design. If a relief valve is incorporated in the regulator design, it shall be considered as part of the regulator in terms of meeting all the requirements of this specification. Regulators which incorporate a relief valve shall be subjected to the test conditions in 4.8.4.3 and shall pass the requirements of 3.6.4.3.
3.5.1 Operation. The regulator shall be capable of providing the outlet pressures specified at the flows, inlet pressures, altitudes, acceleration levels and environmental conditions specified.
3.5.2 Connections. The regulator shall require no input or output connections other than those indicated on drawing 1440AS101. The regulator shall require no electrical power.
3.5.3 Mounting. The regulator shall require no mounting or support other than as indicated on drawing 1440AS101.
3.5.4 Inlet fitting. The inlet fitting shall be in accordance with drawing
1440AS101. The fitting shall be installed such that it can be easily removed and
replaced. The inlet fitting shall contain a filter as specified in 3.5.5.
3.5.5 Filters. A filter capable of filtering materials 70 microns in size shall be provided in the inlet fitting to prevent foreign particles from entering the regulator while in service. The filter shall be installed such that it can
be removed and replaced as part of the inlet fitting. Similar size screens and filters shall also be provided in all ambient pressure sensing ports.
3.5.6 Odor. The interior of the regulator shall be free from odor.
3.5.7 Moisture. The design shall include provisions for preventing moisture from entering and collecting within the regulator.
3.5.8 Plugs. All openings in the regulator shall be closed with plastic caps or plugs to prevent foreign matter from entering the regulator during shipping and storage.
3.5.9 Weight. The weight of the oxygen regulator shall be not greater than
10.5 ounces.
3.5.10 Interchangeability. All parts, subassemblies and assemblies having the same part number shall be dimensionally and mechanically interchangeable.
3.5.11 Aneroid adjustment. The regulator shall be designed so that the aneroid can be easily adjusted. Aneroid bleed holes shall be visible, accessible, and capable of being blocked.
3.5.12 Identification of product. The regulator shall be identified in accordance with MIL-STD-130.
3.5.13 Serial numbers. The regulator shall be identified by an individual serial number which shall be assigned by the manufacturer. Serialization shall
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