TM 1-1520-238-23
Change 8
D-261
CONDUCTIVITY PER MIL-C-5541 CLASS 3A FOR 0.050
NOTES:
1 TUBE ASSEMBLY, METAL - MAKE FROM AL-ALY
TUBING,
TUBE SIZE 0.250 O.D x 0.028 WALL THICKNESS
NSN 4710-00-289-2780
2
DIMENSION C IS DISTANCE BETWEEN BENDS
3
FIRST BEND STARTS FROM A END
4
DIMENSION L IS PREPARED LENGTH BEFORE BENDING
5
FINISH - CHROMIC ANODIZE PER MIL-A-8625 TYPE I
CLASS I
6
FINISH - CHEMICALLY FILM TREAT FOR ELECTRICAL
CONDUCTIVITY PER MIL - C-5541 CLASS 3A FOR 0.050
INCH FROM EACH END, EXTERNAL SURFACES ONLY
7
IDENTIFY AND APPLY MIL-V-173 PROTECTIVE
COATING
8
TAPE ARROW POINTS TO B END
-3 TUBE
NOTE 5 & 6
A END
B END
MS21921-4D NUT
NSN 4730-01-254-9841
MS21922-4 SLEEVE
NSN 4730-00-289-8619
HS4519-4D ELBOW
NSN 4730-01-178-5064
HS4367-2 PLATE
NSN 9905-01-221-0504
NOTE 7
HS184-175 TAPE
NOTE 8
A END
B END
F BEND
ANGLE
C
L
H
TUBE
TURN
PLANE OF
FIRST BEND
DIMENSIONS
C
F
L
1.56
1
4.97
87.9
2
55.6
89.32
PART NUMBER 7-311710506
6.02
3
18.42
53.4
4
63.2
5
1.00
3.6
2.74
6
4.43
40.8
7
40.7
8
3.81
36.6
1.29
9
38.3
10
11.66
40.5
3.00
11
25.2
12
3.01
66.1
6.16
13
27.1
14
10.53
26.6
2.79
89.32
89.32
89.32
89.32
89.32
89.32
89.32
89.32
89.32
89.32
89.32
89.32
89.32
E
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
H
0.0
177.9
1.2
173.6
4.8
1.1
175.3
6.6
179.5
72.5
96.2
171.0
12.2
-50.6
BEND
NUMBER
M04-4954A
E BEND RADIUS
Figure D-280.
Tube Assembly PN 7-311710506
