CEC INDUSTRIES · Electronic Components
577
T4 3/4 DBL END CAP 12.8V 1.4A 21CP
Part Number577
ManufacturerCEC INDUSTRIES
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-262-0198 (NSN)
Federal Item NameELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Tube TypeDIODE
Nondefinitive Spec Std Data577 TYPE
Installation DesignPANEL
Measurement Range+1.15 TO 1.33 VOLTS, DC SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type And Quantit6 UNTHREADED HOLE(S)
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method And Quan2 SOLDER LUG
Accuracy In Percent-1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Movement TypeMOVING COIL, PERMANENT MAGNET
ColorUNABLE TO DECODE
Style DesignatorROUND FLUSH MTG
Special MarkingsRED 1.15V TO 1.29V,GREEN AND YELLOW 1.29V TO 1.33V,YELLOW OVE 1.33V,CELL VOLTS
Meter Body Diameter Behind Mountin3.625 INCHES NOMINAL
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 577 available?
We can source 577 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 577 by CEC INDUSTRIES obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 577 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 577?
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 577?
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.