MIL-SPEC · Electronic Components
M55629/1-277
Circuit Breaker
Part NumberM55629/1-277
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-368-3721 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Circuit Protection TypeOVERCURRENT ALL LOCATIONS
Main Contact Tripping Mechanism TyTRIP FREE
Maximum Continuous Load Current Ra750.0 MILLIAMPERES AC SINGLE LOCATION
Internal Trip Release ConfiguratioSERIES TRIP SINGLE LOCATION
Mounting Surface To Terminal End D2.553 INCHES MAXIMUM
Boss Height0.140 INCHES NOMINAL
Center To Center Distance Between1.810 INCHES NOMINAL
Distance Between Centerlines Of Mo2.062 INCHES NOMINAL
Pole Quantity1
Mounting Facility Type And Quantit2 THREADED HOLE(S)
Nominal Thread Size0.138 INCHES
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 M55629/1-277 available?
We can source M55629/1-277 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 M55629/1-277 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M55629/1-277 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 M55629/1-277?
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 M55629/1-277?
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.