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MIL-SPEC  · Electronic Components

M55629/9-020

Circuit Breaker

Part NumberM55629/9-020
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Body Length1.969 INCHES MINIMUM AND 2.031 INCHES MAXIMUM
Body Width1.469 INCHES MINIMUM AND 1.531 INCHES MAXIMUM
Storage TypeGENERAL PURPOSE WAREHOUSE
Fragility FactorMODERATELY RUGGED
Pole Quantity2
Distance Between Centerlines Of Mo1.629 INCHES MINIMUM AND 1.691 INCHES MAXIMUM
Center To Center Distance Between1.529 INCHES MINIMUM AND 1.591 INCHES MAXIMUM
Arc Quenching MethodMAGNETIC BLOWOUT
Special Handling FeatureMAGNETIC
Thread Quantity Per Inch32
Mounting Facility Type And Quantit4 THREADED HOLE(S)
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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

Frequently asked

Is M55629/9-020 available?
We can source M55629/9-020 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 M55629/9-020 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M55629/9-020 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 M55629/9-020?
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 M55629/9-020?
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.