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Heyco Pigtail™ Strain Relief Bushings 
Heyco Pigtail™ Strain Relief Bushings Component Program of Underwriters Recognized under the Component Program of Underwriters' Laboratories File #E-15331
Canadian Standards Association Certified by Canadian Standards Association File #LR-8919
 
For Flat Cables, with Integral Nylon Spring
Swipe
Will Fit These Cables Chassis Dimensions Part No. UL/CSA
Description
Part Dimensions
UL
Type
AWG/
Cond.
App.
Size
A Mount
Hole
Diam
B
Prevent
Rotation
Thickness C Head Length D Body Length
in
 mm
in
mm
in
mm
in
mm
in
mm
in
mm
SPT-1 18/3 .12x.30
3,0x7,6
.500
12,7
.465
11,8
.062
1,6
1541 SR 4N-7 1.718
43,6
1.984
50,4
SPT-2
& HPN
18/2 .15x.28
3,8x7,1
Standard Strain Relief Color: Black. White and other strain relief colors available at extra charge (only in large fastener quantities)


Fasteners for Round Cables, with Integral Nylon Spring
Swipe
Will Fit These Cables Chassis Dimensions Part No. UL/CSA
Description
Part Dimensions
UL
Type
AWG/
Cond.
App.
Size
A Mount
Hole
Diam
B
Prevent
Rotation
Thickness C Head Length D Body Length
in
 mm
in
mm
in
mm
in
mm
in
mm
in
mm
SV & SVT 18/3 .250
6,4
.500
12,7
.450
11,4
.062
1,6
1590 SR 5N-7 1.703
43,3
1.984
50,4
18/2 .255
6,5

.500
12,7

.515
13,1

HPD 18/2 .270
6,9
.500
12,7
16/2 .290 .500
12,7

.515
13,1
.125
3,2
1593 SR 5P-7
SJ, SJO & SJT 18/2 .300
7,6
.625
15,9
.550
14,0
.062
1,6
1596 SR 6N-7 1,718
43,6
2.109
53,6
.125
3,2
1602 SR 6P-7
16/2 .315
8,0
.062
1,6
1599 SR 6N3-7
18/3 .320
8,1
14/2 .350
8,9
18/4 .360
9,1
.125
3,2
1605 SR 6P3-7
SJT 18/4 .360
9,1
.750
19,0
.660
16,8
.125
3,2
1611 SR 7P-7
14/3 .370
9,4
S & ST 18/2 .390
9,9
18/3 .405
10,3
16/2 .405
10,3
16/3 .430
10,9
.750
19,0

.781
19,8
Standard Nylon Strain Relief Color: Black. White and other strain relief colors available at extra charge (only in large fastener quantities)
  • Each strain reliever protects the lifeline of your electric/electronic products by absorbing forces of pull, push, twist, and FLEX.
  • These strain relievers are not recommended for applications where the power supply cord is subject to whipping or "jumprope" type motion.
  • Pigtail strain relief fasteners add reliability, longevity, and safety. These strain reliefs will pass CSA's 50,000 cycle "vacuum cleaner" test (C22.2 No. 67).
  • Each Pigtail strain relief fastener securely anchors, insulates and protects cables at chassis entry points.
  • Integral nylon spring on each nylon fastener or separate metal spring eases the cable into the lazy bend, prevents the strain of sharp bending and assures longest cable and product life.
  • These strain reliefs standardize panel design!  Fill unneeded SR mounting holes with Heyco Double D nylon fastener Plugs.
  • The pigtail strain reliefs are molded of type 6/6 nylon.  ASTM D-40660; flammability classification 94V-2; temperature index 125°C.  Maximum temperature on the fastener shall not exceed 105°C.
    (Click here to see our guide on choosing the best strain relief for your fastening application.)
Heyco Pigtail™ Strain Relief Bushings

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