DRS Naval Power Systems · Electronic Components
121-0139
Relay, Electromagnetic
Part Number121-0139
ManufacturerDRS Naval Power Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-466-3461 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Main Contact Load Current Rating A1.00 AMPERES AC AND 2.00 AMPERES DC RESISTIVE LOAD
Operating Voltage Rating And Type90.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Thread Class2A SINGLE MOUNTING FACILITY
Mounting Facility Type And Quantit1 THREADED STUD(S) SINGLE MOUNTING FACILITY
Overall Width1.170 INCHES NOMINAL
Winding Quantity1
Main Contact Maximum Voltage Ratin115.0 AC AND 24.0 DC
Overall Length1.400 INCHES NOMINAL
Nominal Thread Size0.099 INCHES SINGLE MOUNTING FACILITY
Environmental ProtectionDUSTPROOF
Duty TypeCONTINUOUS
Vendor Part NumbersT154X931
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 121-0139 available?
We can source 121-0139 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 121-0139 by DRS Naval Power Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 121-0139 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 121-0139?
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 121-0139?
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.