Heyco Strain Reliefs Straight Thru for Flat Cable

Material: Nylon 6/6

Certifications:

File E15331

File 8919

Flammability Rating: 94V-2

Material Temperature Index: 125°C (257°F)
Max. temperature on part not to exceed 105°C (221°F)

 
  • Protects the lifeline of your electric/electronic products by absorbing the forces of push, pull and twist that may be exerted on the flexible power cord.
  • Securely anchors, insulates, and protects cable at panel entry points.
  • Sizes for thinner panels .040" (1,0 mm) are available: SR 4A-6 and SR 3A-4. See table below for details.
  • Heyco Double D Plugs may be used to fill blank/unused mounting holes and thus allow for a single panel design for multiple applications.
  • See below for assembly tool and installation instructions.
  • Heyco nylon strain reliefs are also available in Labkit #1. This handy compartmentalized box provides a working assortment for prototype use in design and engineering groups.
  • Part markings
Heyco® Original Strain Relief Bushings
Straight-Thru for Flat Cable
Will Fit These Cables Panel Dimensions Part Number UL/CSA
Designation		 Part Dimensions
UL Type
Designation		 AWG/
Conductors		 Approximate Size A
Mounting Hole
Diameter		 B
To Prevent
Rotation		 1 Finished Fit
Panel Thickness		 Color C
Body Length
in. mm. in. mm. in. mm. in. mm. Black White in. mm.
300 OHM† 20/2
22/2		 .06 x .40 1,5 x 10,2 .375 9,5 .625-
.640		 15,9-
16,3		 .100 2,5 1814 1815 SR 302-1 * * .469 11,9
SPT-1 18/2
18/3		 .12 x .30 3,0 x 7,6 .375
.390		 9,5
9,9
SPT-2 18/2
18/3		 .15 x .40 3,8 x 10,2 .415
.422		 10,5
10,7
16/2
16/3		 .16 x .41 4,1 x 10,4 .422
.437		 10,7
11,1
Same as SR 302-1 above except    .156 4,0 1804 1805 SR 300-1 * * .469 11,9
CLOCK
X & XT		 20/2 .09 x .18 2,3 x 4,6 .375   9,5 .345   8,8 .062 1,6 1017 1018 SR 2P-4 .406 10,3
SPT-1 18/2 .11 x .21 2,8 x 5,3
Same as SR 2P-4 above except    .125 3,2 1034 1035 SR 2L-1 .406 10,3
SPT-1 18/2 .12 x .22 3,0 x 5,6 .437 11,1 .390   9,9 .040 1,0 1074 1075 SR 3A-4 .406 10,3
Same as SR 3A-4 above except    .062 1,6 1077 1078 SR 3P-4 .406 10,3
.100 2,5 1104 1105 SR 3W-1 .406 10,3
.156 4,0 1094 1095 SR 3L-1 .406 10,3
SPT-1
SPT-2
HPN		 18/2 .12 x .22 3,0 x 5,6 .500 12,7 .445 11,3 .100 2,5 1130 1131 SR 4P-4 .440 11,2
SPT-1 18/3 .12 x .30 3,0 x 7,6 .500 12,7 .445 11,3 .062 1,6 1120 1121 SR 4N-4 .406 10,3
SPT-2
HPN		 18/2 .15 x .28 3,8 x 7,1
Same as SR 4N-4 above except    .100 2,5 1117 1118 SR 4K-4 .406 10,3
.156 4,0 1127 1128 SR 4L-4 .406 10,3
SPT-1 18/3 .12 x .30 3,0 x 7,6 .500 12,7 .460 11,7 .095 2,4 1114 1115 SR 4K-1 .500 12,7
SPT-2 & HPN 18/2 .15 x .28 3,8 x 7,1
HPN 18/3 .15 x .34 3,8 x 8,6 .500-
.515		 12,7-
13,1
SPT-2 & HPN 16/2 .16 x .30 4,1 x 7,6
Same as SR 4K-4 above except    .187 4,7 1124 1125 SR 4L-1 .500 12,7
SPT-2 18/3
16/3		 .15 x .40
.16 x .41		 3,8 x 10,2
4,1 x 10,4		 .562 14,3 .530 13,5 .125 3,2 1174 1175 SR 5W-1 .609 15,5
HPN 16/2
16/3		 .16 x .37
.16 x .42		 4,1 x 9,4
4,1 x 10,5
SPT-3 18/2
16/2		 .19 x .35
.20 x .37		 4,8 x 8,9
5,1 x 9,4		 .562 14,3 .530 13,5 .062 1,6 1170 1171 SR 5KN-4 .609 15,5
SPT-2 18/3 .15 x .40 3,8 x 10,2
SPT-2
& HPN		 16/3 .16 x .41 4,1 x 10,4
Same as SR 5KN-4 above except    .125 3,2 1167 1168 SR 5K-4 .609 15,5
SPT-2 18/3
16/3		 .15 x .40
.16 x .41		 3,8 x 10,2
4,1 x 10,4		 .560 14,2 .730 18,5 .125 3,2 1484 1485 SR 30-1 * * .672 17,1
SPT-3 18/2
18/3
16/2
16/3		 .19 x .35
.19 x .39
.20 x .37
.20 x .43		 4,8 x 8,9
4,8 x 9,9
5,1 x 9,4
5,1 x 10,9
SPT-2 18/3
16/3		 .15 x .40
.16 x .41		 3,0 x 7,6
4,1 x 10,4		 .625 15,9 .550 14, 0 .062 1,6 1160 1161 SR 6N4-4 .578 14,7
Same as SR 6N4-4 above except    .125 2,5 1163 1164 SR 6P4-4 .578 14,7
SPT-3 16/2
16/3
14/2
14/3		 20 x .37
.20 x .43
.24 x .42
.24 x .51		 5,1 x 9,4
5,1 x 10,9
6,1 x 10,7
6,1 x 13,0		 .750 19,1 .875 22,2 .125 3,2 1504 1505 SR 33-1 * * .781 19,8
SPT-3 14/2
14/3
12/2
12/3		 .24 x .42
.24 x .51
.29 x .51
.29 x .65		 6,1 x 10,7
6,1 x 12,9
7,4 x 12,9
7,4 x 16,5		 .875 22,2 .840 21,3 .125 3,2 1517 1518 SR 34-2 .813 20,7
SPT-3 12/3
10/3		 .32 x .65 8,1 x 16,5 .875 22,2 .835 21,2 .125 3,2 1497 1498 SR 31-2 .812 20,6
1 Maximum Panel Thickness–Part has additional clearance.
* * Use Elongated Hole.
† Wire is not UL/CSA approved.
Heyco® Original Strain Relief Bushings
For Flat Cable, with Flex-Protecting Internal Radii and Extra Body Length
Will Fit These Cables Panel Dimensions Part Number UL/CSA
Designation		 Part Dimensions
UL Type
Designation		 AWG/
Conductors		 Approximate Size A
Mounting Hole
Diameter		 B
To Prevent
Rotation		 Finished Fit
Panel Thickness		 Color C
Head Length		 D
Body Length
in. mm. in. mm. in. mm. in. mm. Black White in. mm. in. mm.
SPT-1 18/3 .12 x .30 3,0 x 7,6 .500 12,7 .465 11,8 .040 1,0 1181 1182 SR 4A-6 .270 6,9 .546 13,9
SPT-2 & HPN 18/2 .15 x .28 3,8 x 7,1
SPT-1 18/3 .12 x .30 3,0 x 7,6 .500 12,7 .465 11,8 .062 1,6 1187 1188 SR 4N-6 .270 6,9 .546 13,9
SPT-2
& HPN		 18/2 .15 x .28 3,8 x 7,1
16/2 .16 x .30 4,1 x 7,6 .515 13,1
Same as SR 4N-6 above except   .100 2,5 1190 1191 SR 4K-6 .270 6,9 .546 13,9
Labkit #1

An assortment of nylon strain reliefs may also be found in Heyco Labkit #1. Labkits contain an assortment of the most common sizes and are ideal for product design and engineering departments.

Heyco® Strain Reliefs
(Part #1999)

Labkit #1
 
SR Assembly Tool
Step 1 Position Heyco strain relief bushing on wire.
Step 2 Squeeze pliers or activate air tool.
Step 3 Push Heyco strain relief into panel hole.

 

Choose the appropriate assembly tool for your application.