Grommets Datasheet by Keystone Electronics

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Tel (718) 956-8900
Fax (718) 956-9040
(800) 221-5510
kec@keyelco.com
www.keyelco.com
31-07 20th Road – Astoria, NY 11105-2017
RoHS COMPLIANT
~
ISO 9001 CERTIFIED
®
GROMMETS
ANTI-VIBRATION GROMMETS
RUBBER GROMMETS
Anti-vibration grommets are designed for noise suppression in
office or lab equipment. Additionally, they isolate sensitive
instrumentation from unpredictable vibration and shock. The
fingers of the grommets provide the flex needed to dampen
unwanted noise and vibration. Specially designed shoulder
screws are designed to provide the correct spacing.
Ideal for electrical insulation and mechanical damping.
O.D.
H
A
B
I.D.
I.D. BAO.D.
CAT. INSIDE MTG. PANEL OUTSIDE H
NO. DIAMETER HOLE THICKNESS DIAMETER HEIGHT
730 .125 (3.2) .187 (4.7) .062 (1.57) .312 (7.9) .187 (4.7)
733 .125 (3.2) .250 (6.4) .062 (1.57) .343 (8.7) .187 (4.7)
734 .125 (3.2) .437 (11.1) .062 (1.57) .625 (15.9) .187 (4.7)
735 .125 (3.2) .375 (9.5) .093 (2.36) .500 (12.7) .312 (7.9)
736 .187 (4.7) .312 (7.9) .062 (1.57) .437 (11.1) .218 (5.5)
737 .187 (4.7) .281 (7.2) .093 (2.36) .437 (11.1) .218 (5.5)
738 .250 (6.4) .437 (11.1) .062 (1.57) .625 (15.9) .187 (4.7)
739 .250 (6.4) .375 (9.5) .062 (1.57) .562 (14.3) .250 (6.4)
740 .250 (6.4) .375 (9.5) .093 (2.36) .500 (12.7) .250 (6.4)
741 .312 (7.9) .562 (14.3) .062 (1.57) .812 (20.6) .312 (7.9)
742 .312 (7.9) .437 (11.1) .062 (1.57) .625 (15.9) .281 (7.1)
743 .312 (7.9) .437 (11.1) .093 (2.36) .625 (15.9) .312 (7.9)
744 .375 (9.5) .625 (15.9) .062 (1.57) .875 (22.2) .312 (7.9)
745 .375 (9.5) .500 (12.7) .062 (1.57) .625 (15.9) .250 (6.4)
732 .437 (11.1) .562 (14.3) .062 (1.57) .750 (19.1) .250 (6.4)
746 .437 (11.1) .687 (17.4) .062 (1.57) .937 (23.8) .312 (7.9)
747 .500 (12.7) .812 (20.6) .062 (1.57) 1.062 (27.0) .312 (7.9)
748 .500 (12.7) 1.250 (31.8) .062 (1.57) 1.500 (38.1) .250 (6.4)
749 .500 (12.7) .750 (19.1) .093 (2.36) .968 (24.6) .281 (7.1)
750 .562 (14.3) .812 (20.6) .062 (1.57) 1.062 (27.0) .312 (7.9)
752 .625 (15.9) .875 (22.2) .062 (1.57) 1.125 (28.6) .312 (7.9)
753 .625 (15.9) 1.250 (31.8) .062 (1.57) 1.500 (38.1) .250 (6.4)
755 .750 (19.1) 1.062 (27.0) .062 (1.57) 1.375 (34.9) .375 (9.5)
756 .750 (19.1) 1.437 (36.5) .062 (1.57) 1.812 (46.0) .375 (9.5)
757 .875 (22.2) 1.250 (31.8) .062 (1.57) 1.625 (41.3) .437 (11.1)
MATERIAL: Rubber, BUNA N
“UNIVERSALRUBBER GROMMET
EXPANDABLE
MEMBRANE
I.D.
O.D.
"A" DIA HOLE.
B
H
.060 [1.52]
MATERIAL: Thermoplastic Rubber, Black
Designed to adjust to different
cable diameters from .125
(3.2) to .312 (7.9)
.
Self-adjusting membrane
forms a dust resistant seal.
MATERIAL:
Isolator: EPDM Rubber
Shoulder Screw: Steel, Nickel Plate
CAT. O.D. I.D. ABH
NO. OUTSIDE INSIDE DIA. DIA. HOLE MTG HOLE HEIGHT
777 .650 (16.32) .380 (9.7) .090 (2.3) .500 (12.7) .250 (6.4)
778 1.25 (31.8) .810 (20.6) .160 (4.0) 1.000 (25.4) .370 (9.4)
BLACK BLUE O.D. I.D. AB SHOULDER SCREW
CAT. CAT. OUTSIDE INSIDE H PANEL MTG. LENGTH
NO. NO. DIAMETER DIAMETER HEIGHT THICK HOLE (L) THREAD D HEAD
765 766 .379 (9.6) .154 (3.9) .228 (5.8) .063 (1.6) .250 (6.4) .189 (4.8) 6-32 .250 (6.4)
769 770 .377 (9.6) .161 (4.1) .298 (7.6) .125 (3.2) .250 (6.4) .252 (6.4) 6-32 .300 (7.6) Hex
775 776 .551 (14.0) .191 (4.9) .319 (8.1) .063 (1.6) .375 (9.5) .318 (8.0) 6-32 .394 (10.0)
767 768 .379 (9.6) .154 (3.9) .228 (5.8) .047 (1.2) .250 (6.4) .197 (5.0) M3 .394 (10.0)
771 772 .411 (11.2) .181 (4.6) .209 (5.3) .031 (0.8) .315 (8.0) .197 (5.0) M3 .394 (10.0) Round
773 774 .551 (14.0) .191 (4.9) .291 (7.4) .047 (1.2) .375 (9.5) .252 (6.4) M3 .394 (10.0)
H
A
B
I.D.
O.D.
THREAD
D
L
Screw supplied unassembled with isolator
ROUND HEAD HEX HEAD
133
MOUNT CHASSIS, PANELS, HEAT SINKS, SOCKETS
BLIND CAPTIVE NUTS - PRESS FIT
Easy Assembly
Dampens Vibration
Eliminates Insulating Washer Hi-Dielectric Strength
T
A
H
H IDEAL
HOLE SHEET
CAT. NO. THREAD SIZE REQ’D. THICKNESS AT
4341 4-40 .250 (6.4) .047 (1.2) .312 (7.9) .030 (.76)
4342 6-32 .312 (7.9) .078 (1.9) .375 (9.5) .030 (.76)
4343 8-32 .406 (10.3) .093 (2.4) .500 (12.7) .030 (.76)
MATERIAL: Molded Nylon with Brass threaded insert
A unique reusable fastener made of NYLON which contains a
threaded brass nut. Finger pressure or light tap seals it in a
pre-drilled hole. The nut is drawn up causing a Nylon bulge
behind the workpiece. Screw may be removed or replaced.
Shown Installed
(Screw not supplied)

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