Heyco Strain Reliefs Straight Thru for Round 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.
  • Fill blank/unused mounting holes with Heyco Double D Plugs.
  • 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 Round 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.
AWM 12/- .125 - .187 3,2 - 4,8 .375   9,5 .330   8,4 .062 1,6 1060 1061 SR 2M-1 .406 10,3
SV & SVT 18/2 .220 - .245 5,6 - 6,2 .500 12,7 .450 11,4 .062 1,6 1157 1158 SR 5MN-3 .438 11,1
Same as SR 5MN-3 above except .100 2,5 1140 1141 SR 5M-3 .438 11,1
For custom interlock
cable, not UR
.250 6,4 .560 14,2 .730 18,5 .125 3,2 1487 SR 30-1A * * .672 17,1
.265 6,7 1490 SR 30-1B * *
SV & SVT 18/2 .250 6,4 .500 12,7 .450 11,4 .062 1,6 1150 1151 SR 5N-4 .438 11,1
18/3 .255 6,5 .500-
.515
12,7-
13,1
HPD 18/2 .270 6,9 .500 12,7
16/2 .290 7,4 .500-
.515
12,7-
13,1
SJT 18/2 .300 7,6 .531 13,5
Same as SR 5N-4 above except .100 2,5 1147 1148 SR 5P-4 .438 11,1
.156 4,0 1154 1155 SR 5L-1 .438 11,1
SV &
SVT
18/2
18/3
.255
.270
6,5
6,9
.500 12,7 .450 11,4 .100 2,5 1137 1138 SR 5P3-4 .438 11,1
HPD 18/2 .290 7,4
SJ, SJT & SJO 18/2 .300 7,6 .500 12,7 .465 11,8 .090 2,3 1184 1185 SR 6W-1 .438 11,1
SPT-3 16/2
SJ, SJT & SJO 18/2 .300 7,6 .625 15,9 .550 14,0 .062 1,6 1217 1218 SR 6N-4 .578 14,7
Same as SR 6N-4 above except .125 3,2 1210 1211 SR 6P-4 .578 14,7
SJT 18/3 .300-
.330
7,6
8,4
.625 15,9 .550 14,0 .062 1,6 1197 SR 6N2-4 .578 14,7
SJ, SJT & SJO 16/2
18/3
14/2
16/3
18/4
.325
.330
.350
.355
.360
8,3
8,4
8,9
9,0
9,1
.625 15,9 .550 14,0 .062 1,6 1200 1201 SR 6N3-4 .578 14,7
Same as SR 6N3-4 above except .125 3,2 1207 1208 SR 6P3-4 .578 14,7
S & ST 18/2 .390 9,9 .625 15,9 .550 14,0 .062 1,6 1202 1203 SR 6N5-4 .578 14,7
18/3
16/2
.405 10,3
Same as SR 6N5-4 above except .125 3,2 1204 1205 SR 6P5-4 .578 14,7
SJ, SJT & SJO 18/2
16/2
18/3
16/3
.300
.325
.330
.355
7,6
8,3
8,4
9,0
.625
.656
.656
.687
15,9
16,7
16,7
17,4
.550 14,0 .156 4,0 1214 1215 SR 6L-1 .678 17,2
HPD 16/3 .355 9,0 .687 17,4
SJT 18/4
14/3
.360
.370
9,1
9,4
.750 19,1 .660 16,8 .062 1,6 1244 1245 SR 7N-2 .750 19,1
S & ST 18/2
18/3
16/2
.390
.405
.405
9,9
10,3
10,3
16/3 .430 10,9 .750-
.781
19,0-
19,8
Same as SR 7N-2 above except .125 3,2 1237 1238 SR 7P-2 .750 19,1
SJ, SJT & SJO 16/2
18/3
14/2
16/3
18/4
.325
.330
.350
.355
.360
8,3
8,4
8,9
9,0
9,1
.875 22,2 .770 19,6 .125 3,2 1240 1241 SR 7K-2 .750 19,1
Same as SR 7K-2 above except See Diagram 1271 1272 SR 7KR-2 .750 19,1
SJT 14/3
12/3
.370
.425
9,4
10,8
.875 22,2 .770 19,6 .125 3,2 1247 1248 SR 7W-2 .750 19,1
S, SO
& ST
18/2
18/3
16/2
16/3
.390
.405
.405
.430
9,9
10,3
10,3
10,9
Same as SR 7W-2 above except .200 5,1 1250 1251 SR 7L-2 .750 19,1
SJT 12/3 .425-
.475
10,8-
12,1
.875 22,2 .840 21,3 .125 3,2 1497 1498 SR 31-2 .812 20,6
S & ST 14/2
14/3
12/2
.530
.560
.600
13,5
14,2
15,3
.875 22,2 .840 21,3 .062 1,6 1254 1255 SR 8N-2 .828 21,0
Same as SR 8N-2 above except .125 3,2 1260 1261 SR 8P-2 .812 20,6
.187 4,8 1274 1275 SR 8L-1 .812 20,6
S 12/2
12/3
10/2
.600
.635
.640
15,2
16,1
16,3
1.093
1.125
1.093
27,7
28,6
27,7
1.000 25,4 .281 7,1 1287 1288 SR 9P-2 1.00 25,4
S, SO & ST 10/3 .690 17,5 1.187 28,6
SRDT
1 Maximum Panel Thickness–Part has additional clearance.
* * Use Elongated Mounting Hole.

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.