MS8003D
REQUIREMENTS:
Dimensions: Unless otherwise specified, all dimensions are in inches. Fittings: All fittings shall be qualified in accordance with MIL-DTL-27272. Hose: The hose shall be qualified in accordance with MIL-DTL-27267.
Assembly classification: Class 1 and class 2 hose assemblies, as specified in MIL-DTL-25579, have been incorporated into the Part or Identifying Number (PIN) as a part of styles (see tables I and II and figure 1).
Angular alignment: Hose assemblies with elbow fittings on each end shall have the angular orientation between the elbows measured counter-clockwise from the centerline of the nearest fitting, positioned at six-o'clock, to the centerline of the other fitting (see figure 2). The elbow fitting drop height shall be as shown on figure 3 and table IV. When applicable, the angular alignment shall be expressed in three digits and specified in the PIN.
Protective sleeve: If required, the hose assembly shall include a protective sleeve (see table III) and its code shall be included in the PIN. Fire protective sleeve shall be subjected to testing in accordance with MIL-DTL-25579.
Assembly length: Hose assembly shall be furnished in lengths as specified in the contract or purchase order (see MIL-DTL-25579); however, tolerances on the length of each hose assembly shall be as follows:
a. ± 1/8 inch for lengths under 18 inches.
b. ± 1/4 inch for lengths from 18 inches to 36 inches. c. ± 1/2 inch for lengths from 36 inches to 50 inches. d. ± 1% for lengths over 50 inches.
Flareless fitting, hose connector design: Use MIL-DTL-25579/1 for application of NAS 1760 design.
TABLE IV. Size code and elbow fitting drop height.
Size |
Reference tube OD |
Size code |
Maximum drop height of elbow fitting |
|||
(a) 1/ |
(b) 1/ |
(c) 1/ |
(d) 1/ |
|||
8 |
0.500 |
H |
0.642 |
1.072 |
0.458 |
0.927 |
10 |
0.625 |
J |
0.760 |
1.427 |
0.410 |
0.931 |
12 |
0.750 |
K |
0.835 |
1.661 |
0.503 |
1.191 |
16 |
1.000 |
M |
0.889 |
1.811 |
0.540 |
1.317 |
20 |
1.250 |
N |
0.997 |
2.091 |
0.605 |
1.535 |
24 |
1.500 |
P |
1.190 |
2.473 |
0.659 |
1.723 |
1/ Dimensions (a), (b), (c) and (d) are depicted on figure 3.
4
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