MIL-PRF-1/1640E
Dimensions
Dimensions
Ltr
Inches
Millimeters
Ltr
Inches
Millimeters
Min
Max
Min
Max
Min
Max
Min
Max
Conformance inspection, part 3 (see 6/)
Conformance inspection, part 1
A
---
7.687
---
195.250
B
2.990
3.010
75.946
76.454
C
---
2.750
---
69.850
E
1.204
1.296
30.582
32.918
Q
---
3.535
---
89.789
F
2.490
2.510
63.246
63.754
Y
.603
.617
15.316
15.672
M
1.204
1.296
30.582
32.918
AQ
.671
.681
17.043
17.297
S
1.610
1.702
40.894
43.231
AR
.671
.681
17.043
17.297
T
.874
.938
22.200
23.815
AP
.276
.286
7.010
7.264
U
2.562
2.749
65.075
69.825
Nominal dimensions (see note 17)
X
.825
.838
20.955
21.285
G
3.750
95.250
Z
.532
.545
13.513
13.843
H
.297
7.544
AA
.234
.266
5.944
6.756
J
5.400
137.160
AB
.164
.174
4.166
4.420
K
1.200
30.480
AC
.125
.187
3.175
4.750
N
3.406
86.512
AE
.562
---
14.275
---
P
.581
14.757
AF
.750
---
19.050
---
R
4.500
114.300
AG
.115
.135
2.921
3.429
AT
8 (.164)-32
8 (4.166)-32
AJ
.732
.742
18.592
18.850
AL
1.122
28.498
AK
.732
.742
18.592
18.850
AN
.497
12.624
Conformance inspection, part 2
D
.470
.655
11.938
16.637
L
.031
---
0.787
---
W
1.062
1.125
26.975
28.575
AD
---
.156
---
3.962
AH
1.860
1.890
47.244
48.006
AS
1.860
1.890
47.244
48.006
NOTES:
1.
Reference plane `A' is defined as a plane passing along the face of the mounting.
2.
Reference plane `B' is defined as a plane perpendicular to plane `A' passing through the axis of the holes, as
shown at reference plane `A'.
3.
Reference plane `C' is defined as a plane mutually perpendicular to planes `A' and `B' passing through the axis
of the holes, as shown at reference plane `A'.
4.
Includes angular as well as lateral deviations.
5.
Body temperature shall be measured at this point. The TUT serviceability shall not be impaired with a screw
inserted or removed from this threaded hole.
6.
Input bushing temperature shall be measured at this point.
7.
For vibration and shock testing, the planes of testing shall be reference planes `A' - `B' - `C'.
FIGURE 1. Outline drawing of electron tube type 8855 - Continued.
10
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