Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois

60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com

Multi-Deck Rotary Switches

SERIES 71

.5-.75" Diameter, 1/4 Amp, PC Mount

FEATURES

• Terminals From One Side

• Minimum Board Footprint

• Choice of Shaft/Bushing Diameters

• 30° and 36° Angles of Throw

• Military Qualified MIL-DTL-3786/39

See pages F-39 through F-44 for specifications,

accessories and ordering information.

36° Angle of Throw

Note: Common location for a single pole per

deck switch. For common location on

two pole switches see circuit diagrams.

Dimension A

Dimension A

Dimension B

Approx.

Dimension A

Dimension B

Approx.

No. of

Standard

Military

All

Weight

No. of

Standard

Standard

Weight

Decks

Style

Style

Styles

Grams

Decks

Style

Style

Grams

1

.761 (19,33)

.761 (19,33)

.031 (0,79)

12

7

2.349 (59,66)

.312 (7,92)

24

2

.979 (24,87)

.979 (24,87)

.031 (0,79)

14

8

2.567 (65,20)

.312 (7,92)

26

3

1.197 (30,40)

1.415 (35,94)

.031 (0,79)

16*

9

2.785 (70,74)

.312 (7,92)

28

4

1.415 (35,94)

1.633 (41,49)

.031 (0,79)

18*

10

3.003 (76,28)

.312 (7,92)

30

5

1.633 (41,48)

N.A.

.031 (0,79)

20

11

3.221 (81,81)

.312 (7,92)

32

6

2.131 (54,13)

N.A.

.312 (7,92)

22

12

3.439 (87,35)

.312 (7,92)

34

All dimensions not shown

are the same as above.

0.125" Diameter Shaft: Styles AF and MAF (and sealed versions)

Rear Views: Styles AF, BF, MAF, MBF

(and sealed versions)

Military Qualified style MAF

includes a spacer deck between

decks 2 and 3. See dimension chart.

30° and 36° Angle of Throw may be

interposed on either shaft diameter.

30° Angle of Throw

0.250" Diameter Shaft: Styles BF and MBF (and sealed versions)

Military Qualified style MBF

includes a spacer deck between decks

2 and 3. See dimension chart.

Grayhill part number and date code marked on detent cover label. Customer part

number marked on request. Military part number marked when required.

.687 ± .015

(17,45 ± 0,38)

DIA.

.020 ± .003

(0,51 ± 0,08)

TYP.

.203 ± .005

(5,16 ± 0,13)

TERMINAL

NO. 1

.094 ± .010

(2,39 ± 0,25)

C

SEE

CHART

C

L

SHAFT

SHOWN

IN POSITION

ONE

OF

BUSHING

FLATS

C

L

.875 (30°)

.725 (36°) ± .015

(22,23, 18,42

± 0,38)

.125 – .002 + .001

(3,18 – 0,05 + 0,03)

DIA.

1/4-32 UNEF-2A

THREAD

.250 ± .020

(6,35 ± 0,51)

.375 ± .020

(9,53 ± 0,51)

.312 ± .020

(7,92 ± 0,51)

DIM. A ± .046 (1,17)

DIM. B REF.

STUD PROJECTION

(SEE CHARACTER-

ISTICS)

.562

± .015

(14,27

± 0,38)

SEE NOTE

BELOW

C

L

C

L

C

L

.110 ± .010

(2,79 ± 0,25)

TYP.

.412 ± .010

(10,46 ± 0,25)

TYP.

.015

± .002

(0,38

± 0,05)

1

2

10

.500 ± .015

(12,7 ± 0,38)

DIA.

.156 ± .010

(3,96 ± 0,25)

TYP.

SEE

NOTE

.368 (9,35)

REF.

.125 ± .010

(3,18 ± 0,25)

TYP.

.037 ± .005

(0,94 ± 0,13)

TYP.

.075 ± .005

(1,91 ± 0,13)

TYP.

C

L

C

L

1

2

12

.500 ± .015

(12,7 ± 0,38)

DIA.

.368 (9,35)

REF.

.125 ± .010

(3,18 ± 0,25)

TYP.

.156 ± .010

(3,96 ± 0,25)

TYP.

.037 ± .005

(0,94 ± 0,13)

TYP.

.075 ± .005

(1,91 ± 0,13)

TYP.

C

L

C

L

SEE

NOTE

C

SEE

CHART

.219 ± .004

(5,56 ± 0,10)

.687 ± .015

(17,45 ± 0,38)

DIA.

.875 (30°)

.725 (36°) ± .015

(22,23, 18,42

± 0,38)

SHAFT

SHOWN

IN POSITION

ONE

OF

BUSHING

KEYWAY

C

L

3/8 32UNEF-2A

THREAD

.250 – .002 + .001

(6,35 – 0,05 + 0,03)

DIA.

.250 ± .020

(6,35 ± 0,51)

.375 ± .020

(9,53 ± 0,51)

.312 ± .020

(7,92 ± 0,51)

BUSHING KEYWAY .066 ± .002

(1,68 ± 0,05) WIDE BY .036 ± .003

(0,91 ± 0,08) DEEP FROM A

.375 (9,53) DIA.

Angle C is 15° in 12 position switches and 18° in 10 position switches.

*Military style switch is 18 grams for 3 decks and 20 grams for 4 decks.

Rotary

4