Se Relays LLC (Magnecraft) · Electronic Components
B8749-1
Relay, Electromagnetic
Part NumberB8749-1
ManufacturerSe Relays LLC (Magnecraft)
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-259-5279 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Nominal Operating Current Rating A1.8 AMPERES DC SINGLE WINDING
Main Contact Maximum Voltage Ratin28.0 DC
Arc Quenching MethodINERT GAS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Mounting Facility Type And Quantit2 THREADED STUD(S) SINGLE MOUNTING FACILITY
Coil Quantity1
Winding Quantity1
Environmental ProtectionHERMETIC
Thread Class2A SINGLE MOUNTING FACILITY
Center To Center Distance Between1.1875 INCHES NOMINAL SINGLE MOUNTING FACILITY
Winding Dc Resistance Rating30.0 OHMS NOMINAL SINGLE WINDING
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 B8749-1 available?
We can source B8749-1 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 B8749-1 by Se Relays LLC (Magnecraft) obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If B8749-1 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 B8749-1?
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 B8749-1?
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.