Northrop Grumman Systems Corporation · Electronic Components
1851556
Reactor — Coils and Transformers
Part Number1851556
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-803-3310 (NSN)
Federal Item NameREACTOR
Federal Supply Class5950 — Coils and Transformers
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeHERMETICALLY SEALED
Overall Height1.922 INCHES NOMINAL
Winding Operating Current25.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Dc Resistance Rating In Ohms58.000 SINGLE COMPONENT SINGLE WINDING
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Inductance Rating700.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
Frequency Rating1.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Maximum Operating Temp105.0 CELSIUS
Mounting Facility Quantity2 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Vendor Part NumbersAL959
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 1851556 available?
We can source 1851556 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 1851556 by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1851556 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 1851556?
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 1851556?
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.