Multi-Deck Rotary Switches
SERIES 42, 43, 44 and 54
1" Diameter, 1 Amp, Standard,
Military SR04
FEAtuRES
• Rugged Construction Ensures
Switch Operation for the Life of
your Equipment
• Many Circuitry Options
• MIL Qualified Versions MIL-S-3786/04
• Features Choice Include: Shaft/
Panel Seal, Adjustable Stops, PC
Termination, UL Recognized
DIMENSIONS
in inches (and millimeters)
Standard, uL Recognized and
Military Qualified Solder Lug Styles
Rear Views
Series 42
1.015 ± .015
(25,78 ± 0,38) DIA.
OVER TERMINALS
DIM. A + .046 –.020
(+ 0,05 –0,51)
9
#1 THREAD
.219
± .005
(5,56
± 0,13)
DIM. C
± .015 (0,38)
DIM. E
± .010 (0,25)
.250 + .001 –.002
(6,35 + 0,03 –0,05)
DIA.
C
OF BUSHING
L
KEyWAy
SEE NOTE
INTEGRAL ASSEMBLy NUT,
DO NOT REMOVE
BUSHING KEyWAy
.066 ± .002 (1,68 ± 0,05) WIDE By
.036 ± .003 (0,91 ± 0,08) DEEP
FROM A .375 (9,53) DIA.
3/8-32 UNEF-2A THREAD
(MTG. HOLE = 3/8 DIA. MIN.)
Note:
Common location for a single pole per
deck switch. For common location on
multi-pole switches, see circuit
diagrams.
.064 (1,63) MIN. DIA.
HOLE AFTER PLATING
Series 44
1.170 ± .015
(29,72 ± 0,38) DIA.
OVER TERMINALS
GRAyHILL
1
NON-TURN TAB
.125 ± .003 (3,18 ± 0,08) WIDE By
.031 ± .003 (0,79 ± 0,08) THICK
11
12
10
15°
30°
.064 (1,63) MIN. DIA.
HOLE AFTER PLATING
For rear view of 45°, 60° and 90°,
see circuit diagram.
No.
of
Decks
1
2
3
4
5
6
Dimension
A
1.025 (26,04)
1.371 (34,82)
1.717 (43,61)
2.063 (52,40)
2.409 (61,19)
3.005 (76,33)
Dimension
B
Style
Style
A
M or H
.062 (1,57)
.062 (1,57)
.062 (1,57)
.062 (1,57)
.062 (1,57)
.312 (7,92)
.030 (0,76)
.030 (0,76)
.030 (0,76)
.030 (0,76)
.030 (0,76)
.280 (7,11)
Approx. Weight
Grams
42
44
40.0
45.5
51.0
56.5
62.0
67.5
No.
of
Decks
Dimension
A
Dimension B
Style
Style
A
M or H
.312 (7,92)
.312 (7,92)
.312 (7,92)
.312 (7,92)
.312 (7,92)
.312 (7,92)
D
.280 (7,11)
.280 (7,11)
.280 (7,11)
.280 (7,11)
.280 (7,11)
.280 (7,11)
E
Approx. Weight
Grams
42
44
73.0
78.5
84.0
89.5
95.0
100.5
F
90
97
104
111
118
125
48
7
3.351 (85,16)
55
8
3.697 (93,90)
62
9
4.043 (102,69)
69
10
4.389 (111,48)
76 11 4.735 (120,27)
83
12
5.081 (129,06)
Dimension
Series 42
Series 44
C
Grayhill part number and date code marked on detent cover label.
Customer part number marked on request. Military part number
marked when required. UL recognized markings as required.
.562 (14,27) 1.000 (25,4)
.830 (21,08) .093 (2,36)
.642 (16,31) 1.162 (29,51) 1.000 (25,4) .121 (3,07)
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
4
3
3
2
DIM. D
± .010 (0,25) DIA.
C
OF NON-TURN
L
.375 TAB
± .015
(9,53
± 0,38)
.250
± .020
(6,35
± 0,51)
DIM. F ± .015 (0,38)
DIM. B REF.
STUD
PROJECTION
GRAyHILL
.437
± .020
(11,10
± 0,51)
10
.437
± .020
(11,10
± 0,51)
8
7
6
5
1
4
36°
2
Rotary Switches
9
8
7
6
5
Multi-Deck Rotary Switches
CIRCuIt DIAGRAMS: Solder Lug terminals
Switch is Viewed From Shaft End and Shown in Position No. 1
Note: All common terminals are located above base terminals as shown.
C3
9
C
OF
L
BUSHING
11 KEyWAy
12
C1
6
5
4
3
2
1
6
5
4
3
2
C2 7
8
9
10
8
9
10
Series 44 & 54
30° Angle
of throw
11
12
C
L
1 C1
7
6
5
8
10
11
C
L
1 C1
12
7
C2
6
8
9
10
C3
11
12
1
C
L
7
C2
4
3
2
5
4
3
2
C1
ONE POLE
TWO POLE THREE POLE
THREE POLE
Styles A, D and S
Styles M, MS, H and HS
9
C4
10 11
12
C
L
1 C1
4
C2
FOUR POLE
C
OF
L
BUSHING
KEyWAy
9
10
C1
3
2
C4
7
6
C3
5
4
3
C2
8
C5
9 10
C6
11
12
1
2
8
C3
7
6
5
C
L
C1
FIVE OR SIX POLE
7
8
C2
7
6
8
9
10
C
L
Series 42 & 43
36° Angle
of throw
6
5
4
3
2
5
4
3
2
1
1
C1
ONE POLE
TWO POLE
C
OF
L
BUSHING
KEyWAy
8
C1
1
C2
5
4
3
2
C4
Rear Views
6
7
8
1
3
C2
2
45°
C
L
C1
15°
8
7
GRAyHILL
Rotary Switches
6
7
6
7
8
C
L
1 C1
C3 5
4
6
Series 44
45° Angle
of throw
5
4
3
2
5
1
4
ONE POLE
TWO POLE THREE OR FOUR POLE
5
6
C
OF
L
BUSHING
KEyWAy
C2
C1
1
4
5
C3
6
C
L
1 C1
2
4
5
6
6
C
L
1 C1
2
60°
5
GRAyHILL
2
ONE POLE
C2
TWO POLE THREE POLE
4
C
OF
L
BUSHING
KEyWAy
C2 3
C1
1
4
4
GRAyHILL
Series 44
90° Angle
of throw
3
C
L
1 C1
2
TWO POLE
15°
1
2
ONE POLE
90°
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
2
2
Series 44
60° Angle
of throw
4
15°
1
3
3
3
3
4
3
2
3
Multi-Deck Rotary Switches
SERIES 42
1" Diameter, 1 Amp, PC Mount
FEAtuRES
• Satisfies High Current Board Level
Applications
• 36° Angle of Throw Permits up to
Ten Positions
• UL Recognized Versions
DIMENSIONS
in inches (and millimeters)
Standard Style
1.000 ± .010
(25,4 ± 0,25)
DIA.
.437 ± .020
(11,10 ± 0,51)
.600 ± .031
(15,24 ± 0,79)
.250 ± .020
(6,35 ± 0,51)
.750 ± .010
(19,05 ± 0,25)
TYP.
.250 + .001 –.002
(6,35 + 0,03 –0,05)
DIA.
DIM. A + .046 – .020
(+1,17 –0,00)
C C C
L L L
.174
± .010
(4,42
± 0,25)
DIM. B REF.
STUD
PROJECTION
.174 ± .010
(4,42 ± 0,25)
#1 THREAD
.830
± .010
(21,08
± 0,25)
10
.786 ± .010
(19,96 ± 0,25)
DIA.
.219
± .005
(5,56
± 0,13)
1
.500 ± .015
(12,7 ± 0,38)
TYP.
9
2
GRAYHILL
8
3
7
4
.375 ± .015
(9,53 ± 0,38) TYP.
TERMINAL DIMENSIONS AT THIS
POINT ARE .050 ± .005 (1,27 ± 0,13)
WIDE BY .020 ± .003 (0,51 ± 0,08) THICK
C
OF BUSHING
L
KEYWAY
Grayhill part number and date code marked on detent cover label. Customer part num-
ber marked on request. UL recognized marking as required.
COMMON LUG
INTEGRAL ASSEMBLY NUT,
DO NOT REMOVE
BUSHING KEYWAY
.066 ± .002 (1,68 ± 0,05) WIDE BY
.036 ± .003 (0,91 ± 0,08) DEEP
FROM A .375 (9,53) DIA.
3/8-32 UNEF-2A THREAD
(MTG. HOLE=3/8 DIA. MIN.)
1.470 ± .020
(37,34 ± 0,51)
TYP.
CIRCuIt DIAGRAM: PC Mount
Switch is Viewed From Shaft End
and Shown in Position No. 1
PC BOARD MOuNtING PAttERN
Shown for a two deck switch
C
OF FRONT SUPPORT
L
PLATE MOUNTING
HOLES
.375
(9,53)
TyP.
.500
(12,7)
TyP.
.750
(19,05)
.250
TyP.
(6,35)
TyP.
.174 (4,42)
TyP.
.492
(12,50)
SHAFt AND PANEL SEAL: Srs. 42 & 44
Standard Style
The Series 42/44 Styles, which include the letter "S" with
the exception of style "HS", are watertight sealed to the
mounting panel by utilizing the panel seal kit. These switches
are built with a front plate that does not have a non-turn tab.
The panel seal kit consists of a grooved hex nut, a keyed
washer and a keyed panel seal. The grooved hex nut is
assembled to the switch bushing. The keyed washer is slid
down the bushing slot and seated into the hex nut groove.
The seal is likewise assembled to the bushing and hex nut.
The keyed washer is required to provide seal integrity in the
bushing slot. When assembled to the panel, the grooved
nut, backing washer and seal require the same space as a
normal mounting nut. Hence, the seal kit does not alter the
dimensions. Panel seal kit includes a non-turn washer to
be used into a blind hole in the back panel. For panel seal
kit part dimensions, see Accessories. Style "HS" switches
use a similar sealing method, except the integral assembly
nut retains the panel seal. All sealed style switches are
provided with a shaft to bushing internal seal.
Note: All common terminals are located above
base terminals as shown.
SHAFT END
termination
One-sided termination is standard for switches with 2 to 5
positions per pole. Two-sided termination is standard for
switches with 6 thru 10 positions per pole.
6 thru 10 positions
per pole and ter-
minals from one
side of switch are
available on special
order. See Special
Options, page F-10
or contact Grayhill.
10
9
8
7
6
5
C
OF
L
BUSHING
KEyWAy
2
3
4
C1
C
OF BASE
L
TERMINAL
MOUNTING
HOLES
C
OF REAR
L
SUPPORT
PLATE
MOUNTING
HOLES
C
COMMON
L
TERMINAL
MOUNTING
HOLES
.110 (2,79)
.174 (4,42) TyP.
1
ONE POLE
ADJuStABLE StOP SWItCHES: Series 42 and 44
The standard and UL recognized switches are also
Equivalent Styles
For style 44M30, use 44D30 initially
available with adjustable stops. Two removable
For style 42A36, use 42D36,
For style 42u36, use 42uD36
For style 44A30, use 44D30
stop washers allow you to limit the number of
For style 44u30, use 44uD30
For style 42M36, use 42D36 initially
switch positions as needed. A knurled nut is
supplied to secure the washers if desired.
These switches have no bushing keyway. All other
Front Views
dimensions, ratings and characteristics are the
8
8
9
10
6
same as the standard fixed stop styles. Although
not military qualified, the adjustable styles are
useful in military equipment prototypes. However,
USE OF KNURLED
when submitting the equipment for government
NUT IS OPTIONAL
approval, the fixed stop qualified style should
Series 42
Series 44
be substituted.
11
5
4
6
7
5
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
6
5
.250 ± .015
(6,35 ± 0,38) TYP.
.187 ± .015
(4,75 ± 0,38) TYP.
.735 ± .010
(18,67 ± 0,25) TYP.
2
3
4
T
RS P
FI TO
S
3
Rotary Switches
9
FI
ST RST
OP
ADJUSTABLE STOP
WASHERS
Multi-Deck Rotary Switches
SERIES 43
SERIES 54
1" Diameter, 1 Amp, Concentric
Shafts
FEAtuRES
• Two Switches in the Panel Space
of a Single Shaft Rotary
• Military Qualified Versions
MIL-3786/04
• Choice of 10 Positions (Series 43)
or 12 Positions (Series 54)
DIMENSIONS
in inches (and millimeters)
Standard Style and Military Qualified
Rear Views
1.162 (29,51) DIA.
SER. 54
1.000 (25,4) DIA.
SER. 43
C
OF NON-TURN
L
.375 TAB
.250 ± .020
± .015
(6,35 ± 0,51)
(9,53
± 0,25)
.250 ± .020
(6,35 ± 0,51)
.375
± .020
(9,53
± 0,51)
.375
± .020
(9,53
± 0,51)
DIM. A + .046 –.020
(+0,05 –0,51)
.250 ± .020 (6,35 ± 0,51)
.093 ± .015 (2,36 ± 0,38)
SER. 43
.121 ± .015 (3,07 ± 0,38)
SER. 54
Series 43
DIM. B REF.
STUD
PROJECTION
#1 THREAD
.830 (21,08)
SER. 43
1.000 (25,4)
SER. 54
± .010 (0,25)
8
GRAyHILL
1.015 ± .015
(25,78 ± 0,38)
OVER TERMINALS
7
9
10
6
Rotary Switches
5
.642 (16,31)
SER. 54
.562 (14,27)
SER. 43
±.015(0,38)
C
OF BUSHING
L
KEyWAy
SEE NOTE
SECTION
SECTION
A
B
CONTROLLED By
.250 (6,35) .125 (3,18)
DIA. SHAFT
MILITARy NUMBER MARKED ON ALL
QUALIFIED SWITCHES
INTEGRAL ASSEMBLy NUT, DO NOT REMOVE
BUSHING KEyWAy .066 ± .002 (1,68 ± 0,05)
WIDE By .036 ± .003 (0,91 ± 0,08) DEEP FROM
A .375 (9,53) DIA.
3/8-32 UNEF-2A THREAD
.064 (1,63) MIN. DIA.
HOLE AFTER PLATING
NON-TURN TAB
.125 ± .003 (3,18 ± 0,08) WIDE By
.031 ± .003 (0,79 ± 0,08) THICK
Note:
Common location for a single pole per
deck switch. For common location on
multi-pole switches, see circuit
diagrams.
Number of
Decks
Section Section
“A”
“B”
1
2
3
1
2
3
1
2
3
1
1
1
2
2
2
3
3
3
Series 54
1.170 ± .015
(29,72 ± 0,38) DIA.
OVER TERMINALS
Dimension A
Style
A, M or H
1.818 (46,18)
2.164 (54,97)
2.510 (63,75)
2.164 (54,97)
2.510 (63,75)
3.105 (78,87)
2.510 (63,75)
3.105 (78,87)
3.451 (87,66)
Dimension B
Style
A
.062 (1,57)
.062 (1,57)
.062 (1,57)
.062 (1,57)
.062 (1,57)
.312 (7,92)
.062 (1,57)
.312 (7,92)
.312 (7,92)
Style
M or H
.030 (0,76)
.030 (0,76)
.280 (7,11)
.030 (0,76)
.280 (7,11)
.280 (7,11)
.280 (7,11)
.280 (7,11)
.280 (7,11)
Approx. Weight
Grams
Series
43
48
54
60
54
60
66
60
66
72
Series
54
60
67
74
67
74
81
74
81
88
15°
30°
11
12
10
GRAyHILL
9
1
.064 (1,63) MIN. DIA.
HOLE AFTER PLATING
Grayhill part number and date code marked on detent cover label. Customer part number
marked on request. Military part number marked when required.
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
4
3
8
3
2
2
.094 ± .004
(2,39 ± 0,10)
.219 ± .005
(5,56 ± 0,13)
.125 + .001 –.002
(3,18 + 0,03 –0,05) DIA.
.250 + .001 –.002
(6,35 + 0,03 –0,05) DIA.
4
36°
1
7
6
5
Multi-Deck Rotary Switches
SERIES 43 and 54
1" Diameter, 1 Amp, Add-A-Pot
FEAtuRES
• Central Shaft Designed to Operate
an Add-On Potentiometer
• Potentiometer Mounting Plates
Provided
• Adjustable Stop Standard, Fixed
Stop by Order
• Choice of 10 Positions (Series 43)
or 12 Positions (Series 54)
DIMENSIONS
In inches (and millimeters)
Standard Style
Series 43
1.000 ± .010
(25,4 ± 0,25)
DIA.
C
OF NON-TURN
.375
L
TAB
± .015
(9,53
.250 ± .020
± 0,38)
(6,35 ± 0,51)
.250 ± .020
(6,35 ± 0,51)
7
8
Rear Views
DIM. A + .046 –.020
(+0,05 –0,51)
.093 ± .015 (2,36 ± 0,38)
SER. 43
.121 ± .015 (3,07 ± 0,38)
SER. 54
.250 ± .020 (6,35 ± 0,51)
.140 ± .062
(3,56 ± 1,57)
#1 THREAD
8
7
.375
± .020
(9,53
± 0,51)
.375
± .020
(9,53
± 0,51)
.625 ± .046
(15,88 ± 1,17)
Series 43
1.015 ± .015
(25,78 ± 0,38)
OVER TERMINALS
6
5
SEE NOTE
NON-TURN TAB
.125 ± .003 (3,18 ± 0,08) WIDE By
.031 ± .003 (0,79 ± 0,08) THICK
.562
± .015
(14,27
± 0,38)
STOP WASHERS
USE OF KNURLED NUT
OPTIONAL
3/8-32 UNEF-2A THREAD
Note:
Common location for a single pole per
deck switch. For common location on
multi-pole switches, see circuit diagrams.
.064 (1,63) MIN. DIA.
HOLE AFTER PLATING
Series 54
1.162 ± .010
(29,51 ± 0,25)
DIA.
9
10
11
Series 54
1.170 ± .015
(29,72 ± 0,38)
OVER TERMINALS
10
8
7
Number
of
Decks
1
2
3
Dimension
A
.974 (24,74)
1.320 (33,53)
1.666 (42,32)
Approx. Weight
Grams
Series 43
48
54
60
Series 54
60
67
74
12
11
9
8
6
15°
30°
1
5
.642 ± .015
(16,31 ± 0,38)
Two potentiometer mounting plates are
supplied. Mounting plates have .261 (6,63)
and .380 (9,65) diameter holes respectively
for mounting potentiometers with
1
/
4
" and
3
/
8
"
bushings. Additional nuts for the through bolts
of the switch are provided for adjustment of
mounting plate location. Tapered tongue on
1
/
8
" shaft provides coupling to screwdriver slots
in potentiometer shafts.
Plated brass spacers for ease of positioning
mounting plate driving assembly are available
on special request (sold only with switches). The
use of spacers is recommended for other than
prototype requirements. When ordering switches
with spacers, give full details regarding special
length, potentiometer being used, etc.
Standard style, concentric shaft, add-a-pot
switches have adjustable stops. See Adjustable
Stop description.
Grayhill part number and date code marked on detent cover
label. Customer part number marked on request. Military
part number marked when required.
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
5
3
4
3
2
2
2
2
.094 ± .004
(2,39 ± 0,10)
.219 ± .005
(5,56 ± 0,13)
.125 + .001 –.002
(3,18 + 0,03 –0,05) DIA.
.250 + .001 –.002
(6,35 + 0,03 –0,05) DIA.
36°
1
.830 (21,08) SER. 43
1.000 (25,4) SER. 54
± .010 (0,25)
9
10
6
9
5
T
RS
FI TOP
S
3
3
4
Rotary Switches
4
4
7
F
ST IRST
OP
6
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