MS28753E
REQUIREMENTS:
Material: Materials shall be in accordance with table I and SAE-AS4841.
TABLE I. Material designators.
Material designator |
Alloy |
Finish |
D |
Aluminum alloy 2014 or 2024 |
Anodize in accordance with MIL-A-8625, type II. 1/ |
W |
Aluminum alloy 7075 |
Anodize in accordance with MIL-A-8625, type II. 1/ |
Dash (-) |
Titanium 2/ |
Fluoride phosphated in accordance with SAE-AMS2486 3/ |
T |
Titanium 2/ |
Anodized in accordance with SAE-AMS2488, type 2 |
1/ Aluminum alloys 2014 and 2024 aluminum shall be dyed light blue. Aluminum alloy 7075
shall be dyed brown.
2/ Titanium shall not be used in oxygen systems.
3/ Color equivalent to numbers /36076, /36081, /36099, /36118, /36134, /36152, /36170,
/36173, and /36176 in accordance with FED-STD-595. Hex or flats shall fit standard wrench openings.
Surface roughness shall be in accordance with ASME-B46.1.
Remove all burrs and sharp edges. The interior surface of the fitting shall be smooth and free from projections.
PIN. The PIN shall consist of the prefix MS followed by the specification sheet number, letter for material designator, and a number for the size.
MS28753 W 16
Size designator (see figure 1)
Material (see table I)
Specification sheet number
MS prefix
Example of PIN: MS28753W16 indicates a straight swivel with flange, aluminum, 1 inch hose or tubing size.
Fittings shall be permanently marked with the applicable MS PIN on an unfinished surface of the nipple. Approximate weights are shown in table II.
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