Heyco® Original Strain Relief Bushings, Straight-Thru for Flat Cables - .375" (9,5 mm) to .500" (12,7 mm) Mounting Holes

Part number and specification

WILL FIT THESE CABLES				PANEL DIMENSIONS						PART NO.	DESCRIPTION	PART DIM.		Mounting Hole Plug
UL Type	AWG/ Conductors	Approximate Size		A Mounting Hole Dia.		B To Prevent Rotation		Finished Fit Panel Thickness*		Black		C BODY LENGTH		Mounting Hole Plug
UL Type	AWG/ Conductors	in.	mm.	in.	mm.	in.	mm.	in.	mm.	Black		in.	mm.	PART NO.
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	SR 302-1**	.469	11,9	consult Heyco
SPT-1	18/2 18/3	.12 x .30	3,0 x 7,6	.375	9,5
SPT-1	18/2 18/3	.12 x .30	3,0 x 7,6	.390	9,9
SPT-2	18/2 18/3	.15 x .40	3,8 x 10,2	.415	10,5
	18/2 18/3	.15 x .40	3,8 x 10,2	.422	10,7
	16/2 16/3	.16 x .41	4,1 x 10,4	.422	10,7
	16/2 16/3	.16 x .41	4,1 x 10,4	.437	11,1
Same as SR 302-1 above except ––––––––––––––––––––––––––––––––––––>								.156	4,0	1804	SR 300-1	.469	11,9	consult Heyco
CLOCK X & XT	20/2	.09 x .18	2,3 x 4,6	.375	9,5	.345	8,8	.062	1,6	1017	SR 2P-4	.406	10,3	2617
SPT-1	18/2	.11 x .21	2,8 x 5,3	.375	9,5	.345	8,8	.062	1,6	1017	SR 2P-4	.406	10,3	2617
Same as SR 2P-4 above except ––––––––––––––––––––––––––––––––––––>								.125	3,2	1034	SR 2L-1	.406	10,3	2617
SPT-1	18/2	.12 x .22	3,0 x 5,6	.437	11,1	.390	9,9	.040***	1,0	1074	SR 3A-4	.406	10,3	2488
Same as SR 3A-4 above except ––––––––––––––––––––––––––––––––––––>								.062	1,6	1077	SR 3P-4	.406	10,3	2488
								.100	2,5	1104	SR 3W-1	.406	10,3	2488
								.156	4,0	1094	SR 3L-1	.406	10,3	consult Heyco
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	SR 4P-4	.440	11,2	2491
SPT-1	18/3	.12 x .30	3,0 x 7,6	.500	12,7	.445	11,3	.062	1,6	1120	SR 4N-4	.406	10,3	2491
SPT-2 & HPN	18/2	.15 x .28	3,8 x 7,1	.500	12,7	.445	11,3	.062	1,6	1120	SR 4N-4	.406	10,3	2491
Same as SR 4N-4 above except ––––––––––––––––––––––––––––––––––––>								.100	2,5	1117	SR 4K-4	.406	10,3	2491
								.156	4,0	1127	SR 4L-4	.406	10,3	consult Heyco
SPT-1	18/3	.12 x .30	3,0 x 7,6	.500	12,7	.460	11,7	.095	2,4	1114	SR 4K-1	.500	12,7	2491
SPT-2 HPN	18/2	.15 x .28	3,8 x 7,1	.500	12,7
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	.500-.515	12,7-13,1
Same as SR 4K-1 above except ––––––––––––––––––––––––––––––––––––>								.187	4,7	1124	SR 4L-1	.500	12,7	consult Heyco

Standard color black. Consult Heyco for white and other colors.
† Wire is not UL/CSA approved.
*Maximum Panel Thickness. Part has additional clearance. Consult Heyco for your Custom Finished Fit Panel Thickness.
**Use Elongated Mounting Hole.
***To install Strain Reliefs for .040" (1,0 mm) Maximum Panel Thickness use Part No. 0021 (No. R 291) Hand Pliers.

Features

Protects the lifeline of your electric/electronic products by absorbing the forces of pull, push, and twist that may be exerted on the flexible power cord.
Securely anchors, insulates, and protects cable at panel entry points.
Sizes for thin .040″ (1,0 mm) panel available: SR 4A-6 & SR 3A-4. See charts for details.
Corresponding Mounting Hole Plugs can be used to fill blank/unused Mounting Holes and thus allow for a single panel design for multiple applications.
Consult Heyco for other wire types and sizes.
For SR assembly tools, click here.
For Double D Mounting Hole Punches, click here.

QuickSpecs

Material		Nylon 6/6
Certifications		Recognized under the Component Program of Underwriters’ Laboratories File E15331
Certifications		Certified by the Canadian Standards Association File 8919
Flammability Rating		94V-2
Temperature Range		-.04°F (-18°C) to 221°F (105°C)

Heyco® Original Strain Relief Bushings, Straight-Thru for Flat Cables – .375″ (9,5 mm) to .500″ (12,7 mm) Mounting Holes

Part number and specification

Features

QuickSpecs