
Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
P
Butt Contact Pushbutton Switches
SERIES 39
SPST, 150 mA
FEATURES
1/4"Diameter
Upto1,000,000
CyclesofOperation
PCMount
Rating at
28 Vdc
Resistive
Operations
at Rated
Load
Button
Color
39-424RED
39-424BLK
Red
Black
150mA
100,000
Total
Travel
.130±.025.015(0,38)
(3,30±0,64)
Action
SPST–Normally Open, with Overtravel
39-424*
*Complete
Part
Number
Actuating
Force (oz.)
Over
Travel
SPST–Normally Open, with Nut
39-401*
SPST–Normally Open, without Nut
39-405*
Rating at
28 Vdc
Resistive
Operations
at Rated
Load
Button
Color
39-401RED
39-401BLK
Red
Black
150mA
1,000,000
*Complete
Part
Number
Action
Actuating
Force (oz.)
Total
Travel
.034+4
(0,89±0,38)
Action
Rating at
28 Vdc
Resistive
Operations
at Rated
Load
Button
Color
Actuating
Force (oz.)
Total
Travel
39-405RED
39-405BLK
Red
Black
150mA
1,000,000
*Complete
Part
Number
.0354+4
(0,89±0,38)
Momentary
–2
Momentary
–2
DIMENSIONS
inInches(andmillimeters)
Min.
Momentary
5±3
.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 = .125 ± .010 (3,18 ± 0,25)
.100 ± .010 (2,54 ± 0,25)
.110 ± .005
(2,79 ± 0,13) DIA.
.640 (16,26)
REF.
A
B
C
D
8-40 UNS-2A
THREAD
TERMINALS ARE
.020 (0,50) SQUARE
E.I.A. DATE
CODE LABEL*
*Label increases
nominal diameter
to .255 (6,48)
.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 = .125 ± .010 (3,18 ± 0,25)
.100 ± .010 (2,54 ± 0,25)
.110 ± .005
.640 (16,26)
REF.
A
B
C
D
8-40 UNS-2A
THREAD
TERMINALS ARE
.020 (0,50) SQUARE
H = HEX MTG NUT
.219 ± .010 (5,56 ± 0,25)
ACROSS FLATS
.063 ± .010 (1,59 ± 0,25)
THICK
H
E.I.A.
DATE
CODE
LABEL*
*Label increases
nominal diameter
to .255 (6,48)
.110 ± .005
(2,79 ± 0,13) DIA.
.780 (19,81)
REF.
A
B
C
D
.250 +.010/ –.005
(6,35 +0,25/ – 0,13)
DIAMETER
TERMINALS ARE
.020 (0,50) SQUARE
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 = .125 ± .010 (3,18 ± 0,25)
.100 ± .010 (2,54 ± 0,25)
H = HEX MTG NUT
.219 ± .010 (5,56 ± 0,25)
ACROSS FLATS
.063 ± .010 (1,60 ± 0,25)
THICK
8-40 UNS-2A
THREAD
H
E.I.A.
DATE
CODE
LABEL*
*Label increases
nominal diameter
to .255 (6,48)