Northrop Grumman Systems Corporation · Electronic Components
51A503
Coil, Radio Frequency
Part Number51A503
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-228-1448 (NSN)
Federal Item NameCOIL,RADIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Body Outside Diameter0.375 INCHES NOMINAL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Length1.656 INCHES NOMINAL
Coil Form TypeSOLID SINGLE COMPONENT
Winding Conductor Size0.01003 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE WINDING
Rating MethodWINDING TURNS SINGLE COMPONENT SINGLE WINDING
Nominal Thread Size0.138 INCHES SINGLE GROUP
Mounting Facility Quantity1 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Thread Quantity Per Inch32 SINGLE GROUP
Inclosure TypeFULLY INCLOSED
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 51A503 available?
We can source 51A503 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 51A503 by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 51A503 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 51A503?
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 51A503?
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.