SAE International · Electronic Components
MS26574-4
Circuit Breaker
Part NumberMS26574-4
ManufacturerSAE International
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-00-833-6028 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Circuit Protection TypeOVERCURRENT SINGLE LOCATION
Reset MethodMANUAL
Operating Voltage Type And Rating115.0 AC AND 28.0 DC SINGLE LOCATION
Maximum Interrupting Capacity Curr100.0 AC AND 100.0 DC SINGLE LOCATION
Trip Release MethodTHERMAL SINGLE LOCATION
Ultimate Trip Rating Of Continuous145.0 SINGLE LOCATION
Trip Release CharacteristicTIME DELAY SINGLE LOCATION
Main Contact Tripping Mechanism TyTRIP FREE
Maximum Continuous Load Current Ra4.0 AMPERES AC AND 4.0 AMPERES DC SINGLE LOCATION
Mounting Surface To Terminal End D1.420 INCHES MAXIMUM
Inclosure Protection Type For WhicEXPLOSION RESISTANT AND MOISTURE RESISTANT
Vendor Part Numbers7274-4-4, 43912741-004
Cancelled NSN5925-00-803-4427 (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 MS26574-4 available?
We can source MS26574-4 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 MS26574-4 by SAE International obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS26574-4 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 MS26574-4?
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 MS26574-4?
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.