Northrop Grumman Systems · Electronic Components
3128A1B1Q2
Relay, Electromagnetic
Part Number3128A1B1Q2
ManufacturerNorthrop Grumman Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-054-6528 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Mounting Facility Type And Quantit2 THREADED STUD(S) SINGLE MOUNTING FACILITY
Winding Dc Resistance Rating2.5 KILOHMS NOMINAL SINGLE WINDING
Overall Width1.000 INCHES NOMINAL
Thread Class2A SINGLE MOUNTING FACILITY
Pile Up Main Contact Form Arrangem2C
Nominal Thread Size0.112 INCHES SINGLE MOUNTING FACILITY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Winding Quantity1
Environmental ProtectionHERMETIC
Center To Center Distance Between0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY
Coil Quantity1
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 3128A1B1Q2 available?
We can source 3128A1B1Q2 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 3128A1B1Q2 by Northrop Grumman Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3128A1B1Q2 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 3128A1B1Q2?
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 3128A1B1Q2?
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.