Cooper Bussmann · Electronic Components
187120F-03-1
Circuit Breaker
Part Number187120F-03-1
ManufacturerCooper Bussmann
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-589-4788 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Overall Width59.0 MILLIMETERS NOMINAL
Overall Height43.8 MILLIMETERS NOMINAL
Pole Quantity1
Switch Current Rating And Type In120.0 AC
Overall Length87.3 MILLIMETERS NOMINAL
Reset MethodMANUAL
Mounting Facility Type And Quantit3 UNTHREADED HOLE(S)
Unthreaded Mounting Hole Diameter5.5 MILLIMETERS NOMINAL
Vendor Part NumbersA028X114, 04-20970-11
Cancelled NSN5925-01-545-2937 (cancelled)
ESD/EMICode A — ESD/EMI sensitive item
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 187120F-03-1 available?
We can source 187120F-03-1 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 187120F-03-1 by Cooper Bussmann obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 187120F-03-1 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 187120F-03-1?
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 187120F-03-1?
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.