720 Keystone Electronics, 720 Datasheet
Specifications of 720
Rohs Compliant
YES
Shape
Cylindrical, Recessed Center
Color
Black
Size
0.500" Dia x 0.250" H (12.70mm x 6.35mm)
Size - Visible
0.500" Dia x 0.250" H (12.70mm x 6.35mm)
Mounting Type
Screw
Thread Size
4
Features
Ideal for electrical insulation
Product
Hardware
Depth, Recess (d)
0.187 in.
Diameter, Inner, Screw Clear (e)
0.125 in.
Diameter, Mounting Hole
0.125 in.
Diameter, Outer (a)
0.500 in.
Diameter, Recess (c)
0.250 in.
Height
0.250 in.
Material, Body
Rubber, BUNA S
Wire Diameter
12.7mm
Bore Size
6.35mm
Spacer Material
Synthetic Rubber
External Width
12.7mm
Body Color
Black
Mounting Hole Dia
0.250
External Height
0.25"
Screw Size Accepted
#4
External Depth
3.175mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
720K
720KK
720KK
720KK
720KK
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Quantity
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120
8490
8491
8492
8493
8494
8495
8496
Designed to be assembled into holes that already contain wire or cable. Versatile
bushing can be used on all chassis from .032 (.81) to .125 (3.2) thick.
CAT.
NO.
CAT.
730
733
734
735
736
737
738
739
740
741
742
743
744
745
732
746
747
748
749
750
752
753
755
756
757
NO.
REQUIRED DIAMETER
1.000 (25.4)
.375 (9.5)
.500 (12.7)
.562 (14.3)
.625 (15.9)
.750 (19.1)
.875 (22.2)
HOLE
SIZE
NYLON SPLIT BUSHINGS
Ideal for electrical insulation and mechanical damping.
DIAMETER
.125 (3.2)
.125 (3.2)
.125 (3.2)
.125 (3.2)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.312 (7.9)
.312 (7.9)
.312 (7.9)
.500 (12.7)
.500 (12.7)
.500 (12.7)
.562 (14.3)
.625 (15.9)
.625 (15.9)
.750 (19.1)
.750 (19.1)
Tel (718) 956-8900
.375 (9.5)
.375 (9.5)
.437 (11.1)
.437 (11.1)
.875 (22.2)
INSIDE
.187 (4.7)
.187 (4.7)
(800) 221-5510
RUBBER GROMMETS
A
.390 (9.9)
.265 (6.7)
.312 (7.9)
.453 (11.5)
.546 (13.9)
.671 (17.0)
.796 (20.2) 1.062 (27.0)
INSIDE
A
1.250 (31.8)
1.250 (31.8)
1.062 (27.0)
1.250 (31.8)
1.437 (36.5)
.250 (6.4)
.437 (11.1)
.375 (9.5)
.312 (7.9)
.281 (7.2)
.437 (11.1)
.375 (9.5)
.375 (9.5)
.562 (14.3)
.437 (11.1)
.437 (11.1)
.625 (15.9)
.500 (12.7)
.562 (14.3)
.687 (17.4)
.812 (20.6)
.750 (19.1)
.812 (20.6)
.875 (22.2)
.187 (4.7)
MTG.
HOLE
B
•
•
DIAMETER
.562 (14.3)
.640 (16.3)
.796 (20.2)
.421 (10.7)
.687 (17.4)
.921 (23.4)
Fax (718) 956-9040
kec@keyelco.com
HEAD
B
THICKNESS
.093 [2.36]
.125 [3.2]
.062 [1.57]
.032 [0.81]
.062 (1.57)
.062 (1.57)
.062 (1.57)
.093 (2.36)
.062 (1.57)
.093 (2.36)
.062 (1.57)
.062 (1.57)
.093 (2.36)
.062 (1.57)
.062 (1.57)
.093 (2.36)
.062 (1.57)
.062 (1.57)
.062 (1.57)
.062 (1.57)
.062 (1.57)
.062 (1.57)
.093 (2.36)
.062 (1.57)
.062 (1.57)
.062 (1.57)
.062 (1.57)
.062 (1.57)
.062 (1.57)
PANEL
C
E
.062 [1.57]
MATERIAL:
MATERIAL:
1.062 (27.0)
1.500 (38.1)
1.062 (27.0)
1.125 (28.6)
1.500 (38.1)
1.375 (34.9)
1.812 (46.0)
1.625 (41.3)
.500 (12.7)
.562 (14.3)
.500 (12.7)
.750 (19.1)
.968 (24.6)
.312 (7.9)
.343 (8.7)
.625 (15.9)
.437 (11.1)
.437 (11.1)
.625 (15.9)
.812 (20.6)
.625 (15.9)
.625 (15.9)
.875 (22.2)
.625 (15.9)
.937 (23.8)
D
A
B
D
Rubber,
RoHS COMPLIANT
A
B
Nylon 6/6, Black
C
.312 (7.9)
.250 (6.4)
.250 (6.4)
.312 (7.9)
.281 (7.1)
.312 (7.9)
.312 (7.9)
.250 (6.4)
.250 (6.4)
.312 (7.9)
.312 (7.9)
.250 (6.4)
.281 (7.1)
.312 (7.9)
.312 (7.9)
.250 (6.4)
.375 (9.5)
.375 (9.5)
.437 (11.1)
.187 (4.7)
.187 (4.7)
.187 (4.7)
.218 (5.5)
.218 (5.5)
.187 (4.7)
BUNA S
E
[10.3]
.406
~
Snaps into panel hole to provide protection for
wire, cable and tubing from sharp uneven edges.
•
•
•
MATERIAL:
Ideal for maintenance, short-run production, R&D or prototyping. Supplied in 25 ft.
rolls. Make your own grommets to fit any size or shape required.
Designed to adjust to different wire, cable or tubing diameters from
.125 (3.2) to .312 (7.9)
CAT. NO. 777
ISO 9001 CERTIFIED
MATERIAL:
Self-adjusting membrane forms a dust resistant seal
Installs in .500 (12.7) diameter hole in .062 (1.57)
thick panels or boards
Molded outer ring retains grommet in place
8470
8471
8472
8473
8474
8475
8476
8477
8478
8479
8480
8481
8482
8483
8484
8485
8486
CAT.
8615
8616
8617
NO.
CAT.
NO.
“UNIVERSAL” RUBBER GROMMET
Nylon 6/6, Black
NYLON INSULATING BUSHINGS
®
REQUIRED
Nylon 6/6, Black
1.000 (25.4)
1.250 (31.8)
1.500 (38.1)
1.750 (44.5)
2.000 (50.8)
2.500 (63.5)
1.187 (30.1)
1.375 (34.9)
.250 (6.4)
.312 (7.9)
.375 (9.5)
.437 (11.1)
.500 (12.7)
.562 (14.3)
.625 (15.9)
.750 (19.1)
.875 (22.2)
.052 (1.32)
.085 (2.16)
.125 (3.18)
HOLE
PANEL
SIZE
MAX
FLEXIBLE GROMMETING
THICKNESS
MAXIMUM
.135 (3.4)
.145 (3.7)
.165 (4.2)
.062 (1.57)
.062 (1.57)
.250 (6.4)
31-07 20th Road – Astoria, NY 11105-2017
.125 (3.2)
.125 (3.2)
.125 (3.2)
.125 (3.2)
.125 (3.2)
.125 (3.2)
.125 (3.2)
.125 (3.2)
.125 (3.2)
.125 (3.2)
.125 (3.2)
.125 (3.2)
.125 (3.2)
.125 (3.2)
CHASSIS
B
www.keyelco.com
1.968 (50.0)
0.55 (1.4)
0.55 (1.4)
0.55 (1.4)
DIAMETER
1.000 (25.4)
1.062 (27.0)
1.375 (34.9)
1.625 (41.3)
.125 (3.2)
.250 (6.4)
.312 (7.9)
.375 (9.5)
.437 (11.1)
.500 (12.7)
.562 (14.3)
.625 (15.9)
.750 (19.1)
.937 (23.8)
.937 (23.8)
.187 (4.7)
INSIDE
C
MATERIAL:
A
[16.5]
.093 [2.36]
.125 [3.2]
.650
DIA.
.062 [1.57]
.032 [0.81]
D
.200 (5.1)
.220 (5.6)
C
.190 (4.8)
DIAMETER
1.125 (28.6)
1.312 (33.3)
1.359 (34.5)
1.468 (37.3)
1.609 (40.9)
2.125 (54.0)
2.656 (67.5)
1.875 (47.6)
.312 (7.9)
.375 (9.5)
.468 (11.9)
.531 (13.5)
.578 (14.7)
.656 (16.7)
.843 (21.4)
.953 (24.2)
.062 [1.57]
.718 (18.2)
Thermoplastic Rubber, Black
HEAD
D
.500 [12.7]
B
DIA.
E
.139 (3.5)
.182 (4.6)
.232 (5.9)
.090 [2.29]
OVERALL
.312 (7.9)
.312 (7.9)
.406 (10.3)
.406 (10.3)
.406 (10.3)
.406 (10.3)
.406 (10.3)
.406 (10.3)
.453 (11.5)
.453 (11.5)
.453 (11.5)
.453 (11.5)
.453 (11.5)
.453 (11.5)
.453 (11.5)
.453 (11.5)
.718 (18.2)
HEIGHT
.380 [9.7]
B
EXPANDABLE
MEMBRANE
.060 [1.52]
.250 [6.4]
DIA.
A
B
C
E
C
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