Mushield · Electronic Components
420190
Shield, Electron Tube
Part Number420190
ManufacturerMushield
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-003-6631 (NSN)
Federal Item NameSHIELD,ELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Unthreaded Mounting Hole Diameter0.166 INCHES NOMINAL SINGLE MOUNTING FACILITY
Overall Length3.312 INCHES NOMINAL
Mounting Facility Type And Quantit3 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
MaterialNICKEL ALLOY
Bolt Circle Diameter3.375 INCHES MINIMUM AND 3.385 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Overall Diameter3.810 INCHES NOMINAL
Surface TreatmentENAMEL
Style DesignatorCYLINDRICAL
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 420190 available?
We can source 420190 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 420190 by Mushield obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 420190 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 420190?
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 420190?
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.