Northrop Grumman Systems · Electronic Components
74-378
Retainer, Electron Tube
Part Number74-378
ManufacturerNorthrop Grumman Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-246-4622 (NSN)
Federal Item NameRETAINER,ELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Overall Diameter0.812 INCHES NOMINAL
Surface TreatmentPASSIVATE
Overall Length1.438 INCHES NOMINAL
Accommodated Item Securing DeviceCOMPRESSION RING
MaterialSTEEL
Thread Class2A SINGLE MOUNTING FACILITY
Mounting Facility Type And Quantit1 THREADED STUD(S) SINGLE MOUNTING FACILITY
Eia Electron Tube Envelope AccommoT5 1/2
Distance From Retainer Center To C0.688 INCHES NOMINAL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Overall Height2.375 INCHES NOMINAL
Vendor Part Numbers76B681, TYPE1THATE237M0UNTINGP0ST
ProducttraceabilityNo
RohscompliantYES
IscanonicalY
Hazardousfalse
RohsphthalatescompliantYES
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 74-378 available?
We can source 74-378 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 74-378 by Northrop Grumman Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 74-378 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 74-378?
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 74-378?
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.