Northrop Grumman Systems Corporation · Electronic Components
4400B1277
Switch, Pressure
Part Number4400B1277
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-837-8059 (NSN)
Federal Item NameSWITCH,PRESSURE
Federal Supply Class5930 — Switches
Thread Class2B SINGLE THREADED HOLE
Overall Diameter1.312 INCHES NOMINAL
Pressure Switch TypeABSOLUTE
Contact Voltage Rating In Volts126.0 AC AT SEA LEVEL SINGLE VOLTAGE
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Style DesignatorCYLINDRICAL
Contact Stimulus Rating60.00 ACTUATION POINT NOMINAL POUNDS PER SQUARE INCH ABSOLUTE AND 56.00 DEACTUATION POINT NOMINAL POUNDS PER SQUARE INCH
Features ProvidedHERMETICALLY SEALED CASE
Contact Load Current Rating3.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
Hazardous Locations EnvironmentalDRIPPROOF
Terminal TypeCONNECTOR, RECEPTACLE
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 4400B1277 available?
We can source 4400B1277 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 4400B1277 by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4400B1277 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 4400B1277?
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 4400B1277?
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.