Naval Sea Systems Command · Electronic Components
6509903-1
Circuit Breaker
Part Number6509903-1
ManufacturerNaval Sea Systems Command
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-372-4733 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Body Width2.250 INCHES NOMINAL
Main Contact Tripping Mechanism TyTRIP FREE
Maximum Interrupting Capacity Curr1000.0 AC ALL LOCATIONS
Internal Trip Release ConfiguratioSERIES TRIP ALL LOCATIONS
Mounting Facility Type And Quantit6 THREADED HOLE(S)
Center To Center Distance Between1.938 INCHES NOMINAL
Boss Height0.150 INCHES NOMINAL
Pole Quantity3
Mounting Surface To Terminal End D2.611 INCHES NOMINAL
Distance Between Centerlines Of Mo2.062 INCHES NOMINAL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Vendor Part NumbersAM3R-C2-LC07D-A-3-2
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 6509903-1 available?
We can source 6509903-1 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 6509903-1 by Naval Sea Systems Command obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 6509903-1 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 6509903-1?
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 6509903-1?
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.