Cts Electronic Components (California) Inc. · Electronic Components
T3-491R
Retainer, Electron Tube
Part NumberT3-491R
ManufacturerCts Electronic Components (California) Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-976-3262 (NSN)
Federal Item NameRETAINER,ELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Eia Electron Tube Envelope AccommoT3
Unthreaded Mounting Hole Diameter0.078 INCHES NOMINAL SINGLE MOUNTING FACILITY
Precious MaterialSILVER
Style DesignatorIRREGULAR
Material Document And ClassificatiMIL-S-13282 MIL SPEC SINGLE MATERIAL RESPONSE
MaterialSILVER
Distance Between Mounting Facility1.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SECOND CENTER GROUP
Accommodated Item Securing DeviceFRICTION FASTENER
Overall Length1.625 INCHES MAXIMUM
Overall Height0.490 INCHES MAXIMUM
Vendor Part Numbers60A5A227-4
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 T3-491R available?
We can source T3-491R 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 T3-491R by Cts Electronic Components (California) Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If T3-491R 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 T3-491R?
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 T3-491R?
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.