General Dynamics Mission Systems · Electronic Components
380B121
Relay, Electromagnetic
Part Number380B121
ManufacturerGeneral Dynamics Mission Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-204-9612 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Operating Voltage Rating And Type26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Coil Quantity1
Main Contact Load Current Rating A2.0 AMPERES DC RESISTIVE LOAD
Mounting Facility PatternCIRUCLAR SINGLE MOUNTING FACILITY
Mounting Facility Type And Quantit4 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Thread Quantity Per Inch40 SINGLE MOUNTING FACILITY
Terminal Type And Quantity20 PIN ALL FUNCTIONS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Winding Dc Resistance Rating240.0 OHMS NOMINAL SINGLE WINDING
Main Contact Maximum Voltage Ratin29.0 DC
Thread Class2B SINGLE MOUNTING FACILITY
Vendor Part NumbersMHX4
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 380B121 available?
We can source 380B121 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 380B121 by General Dynamics Mission Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 380B121 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 380B121?
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 380B121?
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.