Viking Technologies, Ltd.. · Electronic Components
A3490-2
Retainer, Electron Tube
Part NumberA3490-2
ManufacturerViking Technologies, Ltd..
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-557-6880 (NSN)
Federal Item NameRETAINER,ELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Eia Electron Tube Envelope AccommoT16
Accommodated Item Securing DeviceCOMPRESSION RING
Overall Diameter2.312 INCHES NOMINAL
MaterialSTEEL
Distance From Retainer Center To C1.250 INCHES NOMINAL
Surface TreatmentPASSIVATE
Features ProvidedPOST LOCKING TAB
Mounting Slot Width0.156 INCHES NOMINAL SINGLE MOUNTING FACILITY
Mounting Slot Length0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY
Mounting Facility Type And Quantit1 SLOT SINGLE MOUNTING FACILITY
Style DesignatorPLAIN CAP HOLD DOWN W/ SCREW
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 A3490-2 available?
We can source A3490-2 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 A3490-2 by Viking Technologies, Ltd.. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A3490-2 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 A3490-2?
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 A3490-2?
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.