Northrop Grumman Systems Corporation · Electronic Components
C458-976
Retainer, Electron Tube
Part NumberC458-976
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-581-9717 (NSN)
Federal Item NameRETAINER,ELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Overall Height0.625 INCHES NOMINAL
Distance Between Mounting Facility1.922 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Distance From Retainer Center To M0.953 INCHES NOMINAL
Mounting Slot Length0.250 INCHES NOMINAL SINGLE MOUNTING FACILITY
Accommodated Item Securing DeviceCLAMP
MaterialSTEEL
Style DesignatorDOUBLE FOOT, SCREW CLAMP
Distance From Retainer Center To C0.969 INCHES NOMINAL
Mounting Facility Type And Quantit2 SLOT SINGLE MOUNTING FACILITY
Electron Tube Base Accommodated Di+1.337 TO 1.377 INCHES
Surface TreatmentPASSIVATE
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 C458-976 available?
We can source C458-976 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 C458-976 by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If C458-976 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 C458-976?
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 C458-976?
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.