MS273880
REQUIREMENTS
Elbow subassembly illustration. See figure 1
The inside diameter (I0) of the elbow shall not be less than the I0 of the nipple. Ovality shall not exceed 7.5 percent of the nominal tubing outside diameter. The minimum wall thickness at the elbow bend shall not be less than .034 inch (0.86 mm) for the -10 through -20 sizes, and .044 inch (1.12 mm) for the -24 size.
Intended use. This part is a component of MS27383.
Materials. Material and material codes see table I. See applicable specification sheet and
MIL-0TL-27272 for material of other components identified in table II for their material requirements.
TABLE I. Materials and material codes.
Material code |
Material |
Blank |
Combination of aluminum alloy and corrosion-resistant steel (CRES) |
C |
CRES |
Finish: Finishes are performed at the component level.
Corrosion-resistant steel, do not passivate.
Aluminum alloy, anodize in accordance with MIL-A-8625, type II, dye yellow.
TABLE II. Elbow subassembly composition.
Size and material code |
Wire size and material code e |
Union, nipple size and material code |
Elbow, nipple end size and material code |
A 11 ±.035 |
B 11 ±.035 |
MS27388 |
MS27072 21 |
MS27071 21 31 |
MS27394 21 31 |
||
-10C |
-10C |
-10C |
-10C |
1.315 |
1.392 |
-10 |
-100 |
-100 |
|||
-12C |
-12C |
-12C |
-12C |
1.808 |
1.626 |
-12 |
-120 |
-120 |
|||
-16C |
-16C |
-16C |
-16C |
1.901 |
1.776 |
-16 |
-160 |
-160 |
|||
-20C |
-20C |
-20C |
-20C |
2.180 |
2.056 |
-20 |
-200 |
-200 |
|||
-24C |
-24C |
-24C |
-24C |
2.500 |
2.438 |
-24 |
-240 |
-240 |
11 See figure 1.
21 MS27071, MS27072 and MS27394 shall be dry film lubricated in accordance with table III, dry film is applied in accordance with MS27071, MS27072 or
MS27394 as applicable.
31 Material code "0" aluminum alloy.
2
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