MIL-SPEC · Electronic Components
578
Electron Tube
Part Number578
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-296-2432 (NSN)
Federal Item NameELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Nondefinitive Spec Std Data578 TYPE
Envelope Medium TypeVACUUM
Tube TypeRECTIFIER
Circuit Current For Which DesignedDC
Mounting Hole Diameter0.150 INCHES NOMINAL
Installation DesignPANEL
Accuracy In Percent-1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Meter Depth Behind Mounting Flange1.125 INCHES NOMINAL
Mounting Facility Type And Quantit6 UNTHREADED HOLE(S)
Meter Body Diameter Behind Mountin3.625 INCHES NOMINAL
Movement TypeMOVING COIL, PERMANENT MAGNET
Style DesignatorROUND FLUSH MTG
Special MarkingsRED SLASH 0V TO 25.8V,GREEN 25.8V TO 26.6V,YELLOW 26.6V TO 32,BATTERY VOLTS
ColorUNABLE TO DECODE
Vendor Part Numbers578450R383
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 578 available?
We can source 578 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 578 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 578 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 578?
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 578?
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.