Electrodynamics Inc. · Electronic Components
21651-4
Circuit Breaker
Part Number21651-4
ManufacturerElectrodynamics Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-00-050-2938 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Storage TypeGENERAL PURPOSE WAREHOUSE
Fragility FactorMODERATELY RUGGED
Boss Height0.140 INCHES NOMINAL
Pole Quantity1
Thread Quantity Per Inch32
Mounting Surface To Terminal End D2.471 INCHES NOMINAL
Distance Between Centerlines Of Mo2.062 INCHES NOMINAL
Special Handling FeatureMAGNETIC
Mounting Facility Type And Quantit2 THREADED HOLE(S)
Arc Quenching MethodMAGNETIC BLOWOUT
Center To Center Distance Between1.938 INCHES NOMINAL
Cancelled NSN5925-00-802-2159 (cancelled)
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 21651-4 available?
We can source 21651-4 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 21651-4 by Electrodynamics Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21651-4 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 21651-4?
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 21651-4?
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.