MIL-SPEC · Electronic Components
M55629/9-031
Circuit Breaker
Part NumberM55629/9-031
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-293-3968 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Body StyleMULTIPOLE-MULTIPLE ACTUATOR TYPE
Trip Delay Time In Seconds Per Rat2.200 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT ALL LOCATIONS
Storage TypeGENERAL PURPOSE WAREHOUSE
Center To Center Distance Between0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM
Pole Quantity2
Distance Between Centerlines Of Mo1.629 INCHES MINIMUM AND 1.691 INCHES MAXIMUM
Mounting Facility Type And Quantit4 THREADED HOLE(S)
Mounting Surface To Terminal End D2.032 INCHES MAXIMUM
Fragility FactorMODERATELY RUGGED
Arc Quenching MethodMAGNETIC BLOWOUT
Thread Quantity Per Inch32
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 M55629/9-031 available?
We can source M55629/9-031 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 M55629/9-031 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M55629/9-031 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 M55629/9-031?
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 M55629/9-031?
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.