Lockheed Martin · Electronic Components
7903890-00
Transformer, Power
Part Number7903890-00
ManufacturerLockheed Martin
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-144-0661 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Terminal Type And Quantity35 PIN AND 10 TURRET
Nuclear Hardness Critical FeatureHARDENED
Overall Diameter2.200 INCHES NOMINAL
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting Facility Quantity1 SINGLE GROUP
Winding Function And Quantity3 PRIMARY AND 17 SECONDARY SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Mounting Hole Diameter0.225 INCHES NOMINAL SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Overall Length1.140 INCHES NOMINAL
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 7903890-00 available?
We can source 7903890-00 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 7903890-00 by Lockheed Martin obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 7903890-00 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 7903890-00?
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 7903890-00?
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.