MIL-SPEC · Electronic Components
MS25031-D1B
Relay, Electromagnetic
Part NumberMS25031-D1B
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-773-3860 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Nonpile Up Main Contact Arrangemen4 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Test Data Document81349-MIL-R-6106 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DAT
Main Contact Maximum Voltage Ratin115.0 AC AND 28.0 DC
Overall Width3.000 INCHES MAXIMUM
Overall Height3.750 INCHES NOMINAL
Center To Center Distance Between1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY
Terminal Type And Quantity12 SCREW ALL FUNCTIONS
Operating Voltage Rating And Type28.0 VOLTS DC 25 DEG CELSIUS ALL WINDINGS
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Winding Quantity2
Unthreaded Mounting Hole Diameter0.266 INCHES NOMINAL SINGLE MOUNTING FACILITY
Cancelled NSN5945-00-581-4821 (cancelled)
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 MS25031-D1B available?
We can source MS25031-D1B 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 MS25031-D1B by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS25031-D1B 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 MS25031-D1B?
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 MS25031-D1B?
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.