MIL-STD-202H.pdf - 第145页

MI L - S TD - 202 - 207 Holes (E) ar e drilled eq u i di s t a nt f r o m c or ner hol es o n s am e c ent er l i ne - pane l s N o. 5 and No. 6 only . Holes (F) are drilled e quidistant fr om c or ner hol e s on s a m e…

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MIL-STD-202-207
1/ Quantities are for one mounting.
2/ The size of the auxiliary mounting plate shall be increased to .50 x 36.00 x 34.00 for panels No. 5 and No. 6
listed in table II.
FIGURE 5. Standard mounting fixtures for electrical controller parts (contractors, relays, resistors, etc.).
Inches mm
.18 4.57
.50 12.70
.53 13.46
.62 15.75
.66 16.76
1.00 25.40
1.50 38.10
1.94 49.28
2.00 50.80
2.50 63.50
7.00 177.80
27.00 685.80
34.00 863.60
36.00 914.40
Item
Description
Material
Quantity 1/
1
2
2/ 3
4
5
6
7
8
9
Car building channel, 4 x 13.8 pounds
Car building channel, 4 x 13.8 pounds
Auxiliary mounting plate, .50 x 27.00 x 34.00
Spacer (see table 1)
Plastic mounting panel (see table 2)
Hex head bolt; .750-10UNC-2A x 7.00 lg
Hex head nut, .750-10UNC-2B
Washer, 2.00 OD x .18 ID
Pipe spacer, 1.00 standard, 1.94 lg
Steel
Steel
Steel
Steel
Plastic, laminated, type FBG, in
accordance with MIL-I-24768/14
Steel (heat-treated)
Steel
Steel
Steel
1
1
1
8
8
16
8
12
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MIL-STD-202-207
Holes (E) are drilled equidistant from corner holes on same center line - panels No. 5 and No. 6 only. Holes (F) are
drilled equidistant from corner holes on same center line - panels No. 4 and No. 6 only.
TABLE I. Spacers.
When P (note assembly plan view) is:
L
Remarks
Less than
Greater than
.75
(19.05)
3.25
(82.55)
.75
(19.05)
3.25
(82.55)
1.50
(38.10)
P + .75
4.00
(101.60)
Cut out .50 inch (12.70 mm) thick auxiliary mounting
plate, item 3, to give .75 inch clearance around rear
projections.
Selection of panel size: The panel employed shall be the smallest size shown in the above table that will result in a
clearance, "A" (note assembly front elevation view), of at least 2.50.
TABLE II. Mounting panels.
Panel
number
B
H
T
S
Size of bolts
Bolt-hole
diameter
Quantity
1
2
3
4
5
6
9.00
(228.60)
12.00
(304.80)
16.00
(406.40)
20.00
(508.00)
32.00
(812.80)
36.00
(914.40)
12.00
(304.80)
16.00
(406.40)
20.00
(508.00)
24.00
(609.60)
24.00
(609.60)
34.00
(863.60)
.75
(19.05)
1.00
(25.40)
1.00
(25.40)
1.00
(25.40)
1.00
(25.40)
1.00
(25.40)
1.00
(25.40)
1.00
(25.40)
1.00
(25.40)
1.00
(25.40)
1.25
(31.75)
1.25
(31.75)
.500-13UNC-2A
.500-13UNC-2A
.500-13UNC-2A
.500-13UNC-2A
.625-11UNC-2A
.625-11UNC-2A
.56
(14.22)
.56
(14.22)
.56
(14.22)
.56
(14.22)
.69
(17.53)
.69
(17.53)
4
4
4
6
6
8
NOTES:
1. Metric equivalents are in parentheses.
2. Unless otherwise specified, tolerances are ±.06 inch (1.52 mm).
FIGURE 5. Standard mounting fixtures for electrical controller parts
(contractors, relays, resistors, etc.) - Continued.
13
北测（上海）电子科技有限公司
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MIL-STD-202-207
FIGURE 6. Standard mounting fixtures for deck, or platform, mounted parts.
14
北测（上海）电子科技有限公司
联系方式：xuyj@beice-sh.com 13917165676