Grayhill Pushbutton switches: Butt Contact 39 Panel Mount Series User Manual
Butt contact pushbutton switches series 39, Dimensions, Normally open–spst economy and standard version

Pushbutton Switches
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Butt Contact Pushbutton Switches
SerieS 39
SPSt, 150 ma to 1/2 amp
FeatureS
•	Requires	an	Absolute	Minimum	of	Space
•	Molded-In	Terminals	in	SPST–N.O.
•	Solder	Lug	Terminals
normally Open–SPSt economy and Standard Version
diMenSiOnS
in inches (and millimeters)
39-1
39-3
39-601*
total
travel
action
actuating
Force (oz.)
+	4
-	2
Momentary
4
1,000,000
At 5 Vdc At 20 Vdc
39-601 RED
Red
150 mA 20 mA
39-601 BLK
Black
electrical
ratings
Button
Color
Operations
at rated
Load
*Complete
Part
number
economy Version
Mtg.
Hole
.035 ± .015
11/64"
(0,89 ± 0,38) (4,37) DIA.
Mtg.
Hole
total
travel
actuating
Force (oz.)
Momentary
4
action
+	4
–	2
Button
Color
Operations
at rated
Load
1,000,000
At 115 Vac At 220 Vac
39-1
Red
1
/
2
Amp Res.
1
/
4
Amp Res.
39-3 Black
electrical
ratings
Standard
Complete
Part
number
.035 ± .015
11/64"
(0,89 ± 0,38)
(4,37) DIA.
normally Open–SPSt with Sealed Bushing and Button
39-351*
normally Open–SPSt with Overtravel
39-12
39-24
39-12
Red
39-24
Black
Operations
at rated
Load
rating at
220 Vac
resistive
Button
Color
rating at
115 Vac
resistive
1
/
2
Amp
1
/
4
Amp 100,000
Complete
Part
number
action
actuating
Force (oz.)
Mtg.
Hole
total
travel
Over
travel
	.130	±	.025							.015	(0,38)
	(3,30	±	0,64)										Min.
Momentary
5 ± 3
11/64"
(4,37)
DIA.
39-351 RED
Red
39-351 BLK
Black
Operations
at rated
Load
rating at
220 Vac
resistive
Button
Color
rating at
115 Vac
resistive
1
/
2
Amp
1
/
4
Amp 250,000
*Complete
Part
number
actuating
Force (oz.)
total
travel
action
Momentary
16 ± 8
.035 ± .015
(0,89 ± 0,38)
.110
± .005
(2,79
± 0,13) DIA.
.615 (15,62)
REF.
A
B
C
D
8-40 UNS-2A
THREAD
.250 + .010/ –.005
(6,35 + 0,25/ – 0,13)
DIAMETER
A = .175 + .025/ –.020 (4,45 + 0,64/ – 0,51)
B = .125 
± . 010 (3,18 ± 0,25)
C = .215
± .015 (5,46 ± 0,38)
D = .100
± .020 (2,54 ± 0,51)
H = HEX MTG NUT
.063
± .010 (1,59 ± 0,25)
THICK
.219
± .010 (5,56 ± 0,25)
ACROSS FLATS
H
E.I.A.
DATE
CODE
LABEL*
*Label increases 
nominal diameter 
to .255 (6,48)
.650
(16,51)
REF.
A
.312 –.005
(7,92 –0,13)
ACROSS
FLATS
D
C
B
A = .175 +.025/ .020
						(4,45	+0,64/	 	0,51)
B	=	.125	–	.010
						(3,18	–	0,25)
C	=	.250	–.015
						(6,35	–	0,38)
D	=	.100	–	.020
						(1,54	–	0,51)
.110–	.005	DIA.
(2,79	–	0,13)
#8-40 UNS-2A THREAD
.036 – .005 (0,91 – 0,13)
.072 – .005 (1,83 – 0,13)
.068 – .005 (1,73 – 0,13)
HEX	MTG.	NUT
.0625	(1,59)	TYP.
THICK	AND	
.218	(5,54)	TYP.
ACROSS	FLATS
O
Button	is	O-Ring
sealed	internally.
O = O RING
E.I.A.
DATE
CODE
XXXX
.110 .005
(2,79 0,13) DIA.
.755 (19,18)
REF.
A
B
C
D
8-40 UNS-2A
THREAD
.250 + .010/ – .005
(6,35 + 0,25/ – 0,13)
DIAMETER
A = .175 + .025/ –.020 (4,45 + 0,64/ – 0,51)
B = .125 .010 (3,18 0,25)
C = .355 .015 (9,02 0,38)
D = .100 .020 (2,54 0,51)
H = HEX MTG NUT
.063 .010 (1,60 0,25)
THICK
.219 .010 (5,56 0,25)
ACROSS FLATS
H
E.I.A.
DATE
CODE
LABEL*
*Label increases 
nominal diameter 
to .255 (6,48)
.068
±.005
(1,73
± 0,13)
.036
±.005
(0,91
± 0,13)
.072
±.005
(1.83
± 0,13)
.068 .005
(1,73 0,13)
.036 .005
(0,91 0,13)
.072 .005
(1.83 0,13)
