Lockheed Martin Corporation · Electronic Components
1201398-4
Circuit Breaker
Part Number1201398-4
ManufacturerLockheed Martin Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-00-024-0434 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Inclosure Protection Type For WhicDUSTPROOF AND FUNGUS PROOF
Manual Actuator Type And Quantity1 TOGGLE
Boss Height0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
Thread Quantity Per Inch32
Center To Center Distance Between1.555 INCHES MINIMUM AND 1.565 INCHES MAXIMUM
Pole Quantity1
Mounting Surface To Terminal End D1.875 INCHES MINIMUM AND 1.885 INCHES MAXIMUM
Storage TypeGENERAL PURPOSE WAREHOUSE
Arc Quenching MethodMAGNETIC BLOWOUT
Distance Between Centerlines Of Mo1.655 INCHES MINIMUM AND 1.665 INCHES MAXIMUM
Fragility FactorMODERATELY RUGGED
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 1201398-4 available?
We can source 1201398-4 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 1201398-4 by Lockheed Martin Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1201398-4 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 1201398-4?
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 1201398-4?
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.