Cts Electronic Components (California) Inc. · Electronic Components
T3A421R
Shield, Electron Tube
Part NumberT3A421R
ManufacturerCts Electronic Components (California) Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-818-1423 (NSN)
Federal Item NameSHIELD,ELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Overall Height0.500 INCHES MAXIMUM
MaterialALUMINUM ALLOY 2017 AND ALUMINUM ALLOY AND COPPER ALLOY 170
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Eia Electron Tube Envelope AccommoT3
Style DesignatorOPEN END, WRAP AROUND SHELL W/BASE
Material Document And ClassificatiQQ-A-561 FED SPEC 2ND MATERIAL RESPONSE AND QQ-C-533 FED SPEC 3RD MATERIAL RESPONSE
Unthreaded Mounting Hole Diameter0.078 INCHES NOMINAL SINGLE MOUNTING FACILITY
Distance Between Mounting Facility0.297 INCHES NOMINAL SINGLE MOUNTING FACILITY FIRST CENTER GROUP
Surface TreatmentCHROMATE AND CADMIUM
Surface Treatment Document And ClaQQ-P-416,TY 1,CL 1 FED SPEC 2ND TREATMENT RESPONSE
Accommodated Item Securing DeviceFRICTION FASTENER
Vendor Part NumbersGS82A1
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 T3A421R available?
We can source T3A421R 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 T3A421R by Cts Electronic Components (California) Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If T3A421R 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 T3A421R?
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 T3A421R?
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.