Northrop Grumman Systems Corporation · Electronic Components
GS839B4
Switch, Sensitive
Part NumberGS839B4
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-378-0949 (NSN)
Federal Item NameSWITCH,SENSITIVE
Federal Supply Class5930 — Switches
Terminal Type And Quantity6 WIRE LEAD
Switch Actuating Force192.0 OUNCES MAXIMUM
Actuator Movement0.040 PRETRAVEL INCHES MAXIMUM AND 0.250 OVERTRAVEL INCHES MINIMUM AND 0.020 DIFFERENTIAL INCHES MAXIMUM
Contact Load Current Rating At Max3.000 AMPERES RESISTIVE DC AND 3.000 AMPERES INDUCTIVE DC AND 4.000 AMPERES MOTOR DC AND 5.000 AMPERES RESISTIVE AC AND
Mounting MethodTHREADED BUSHING WITH PANEL SEAL
Inclosure TypeFULLY INCLOSED
Body Length0.980 INCHES MAXIMUM
Nominal Thread Size0.625 INCHES
Maximum Voltage Rating In Volts115.0 AC AND 28.0 DC
Actuator Roller Diameter0.505 INCHES NOMINAL
Bushing Length0.627 INCHES MINIMUM AND 0.687 INCHES MAXIMUM
Vendor Part Numbers21EN314-6
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is GS839B4 available?
We can source GS839B4 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is GS839B4 by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If GS839B4 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like GS839B4?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for GS839B4?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.