MIL-SPEC · Electronic Components
M39019/03-254
Part NumberM39019/03-254
ManufacturerMIL-SPEC
AvailabilityIn stock — ships fast
Specifications
NSN5925-01-020-1748 (NSN)
Federal Item NameCIRCUIT BREAKER
Terminals4 WIRE HOOK
Body StyleMULTIPOLE-SINGLE ACTUATOR TYPE
Nominal Thread Size0.375 INCHES
Circuit Protection TypeOVERCURRENT ALL LOCATIONS
Maximum Interrupting Capacity Curr300.0 AC AND 500.0 DC ALL LOCATIONS
Operating Voltage Type And Rating240.0 AC AND 50.0 DC ALL LOCATIONS
Main Contact Tripping Mechanism TyTRIP FREE
Ultimate Trip Rating Of Continuous125.0 ALL LOCATIONS
Trip Release CharacteristicTIME DELAY ALL LOCATIONS
Reset MethodMANUAL
Federal Supply Class5925 — Circuit Breakers
Cross Reference5925-01-020-1748
Trip Release MethodMAGNETIC ALL LOCATIONS
Maximum Continuous Load Current Ra15.0 AMPERES AC AND 15.0 AMPERES DC ALL LOCATIONS
Frequency In Hertz400.0 ALL LOCATIONS
Trip Delay Time In Seconds Per Rat0.055 MINIMUM AT 200 PCT AND 0.950 MAXIMUM AT 200 PCT ALL LOCATIONS
Cancelled NSN5925-00-135-4045 (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 M39019/03-254 in stock?
Yes — M39019/03-254 is in our stock database. Request a quote for current pricing and lead time.
Is M39019/03-254 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M39019/03-254 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 M39019/03-254?
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 M39019/03-254?
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.