MIL-SPEC · Electronic Components
M39019/03-254S
Circuit Breaker
Part NumberM39019/03-254S
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-437-9172 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Body Length1.562 INCHES MAXIMUM
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Actuator FunctionTRIP-RESET
Terminal Type And Quantity4 TAB W/SCREW
Frequency In Hertz60.0 OR 400.0 ALL LOCATIONS
Switch Location And Position DesigEXTERNAL BETWEEN POLE ONE AND TWO
Body Width1.281 INCHES MAXIMUM
Main Contact Tripping Mechanism TyTRIP FREE
Unthreaded Mounting Hole Diameter0.250 INCHES NOMINAL
Manual Actuator Type And Quantity1 TOGGLE
Actuator Position DesignationBETWEEN POLE ONE AND TWO
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 M39019/03-254S available?
We can source M39019/03-254S 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 M39019/03-254S by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M39019/03-254S 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 M39019/03-254S?
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 M39019/03-254S?
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.