Northrop Grumman Systems · Electronic Components
55B118
Transformer, Audio Frequency
Part Number55B118
ManufacturerNorthrop Grumman Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-249-7333 (NSN)
Federal Item NameTRANSFORMER,AUDIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Mounting MethodSLOT SINGLE GROUP
Mounting Facility Quantity2 SINGLE GROUP
Body Length2.125 INCHES NOMINAL
Distance Between Mounting Facility1.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Impedance Rating In Ohms3.5 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Primary To Secondary Turn Ratio1 TO 46.3 SINGLE COMPONENT
Maximum Transformer Power Rating3.0 WATTS SINGLE COMPONENT
Body Width2.250 INCHES NOMINAL
Frequency Rating400.0 HERTZ MINIMUM AND 4.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
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 55B118 available?
We can source 55B118 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 55B118 by Northrop Grumman Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 55B118 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 55B118?
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 55B118?
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.