Telephonics Corp./PRD Instruments · Electronic Components
303A
Tuner, Waveguide
Part Number303A
ManufacturerTelephonics Corp./PRD Instruments
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-683-4597 (NSN)
Federal Item NameTUNER,WAVEGUIDE
Federal Supply Class5985 — Antennas and Waveguides
MaterialCOPPER
Adjustment MethodINSIDE SLIDING
Overall Width1.625 INCHES NOMINAL
FSC Application DataFIRE CONTROL MAINTENANCE AND REPAIR SHOP SPECIALIZED EQUIPMENT
Overall Height1.625 INCHES NOMINAL
Overall Length5.950 INCHES NOMINAL
Vendor Part Numbers8579243
PhaseSINGLE LOCATION NOT OTHERWISE SPECIFIED
Electrical Power Source RelationshOPERATING
Test Type For Which DesignedTELEGRAPH TERMINAL AND TRANSMISSION FACILITIES
Major ComponentsPATTERN GENERATOR; DATA ANALYZER
Ac Voltage Rating115.0 VOLTS MINIMUM AND 230.0 VOLTS MAXIMUM
Frequency Rating50.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
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 303A available?
We can source 303A 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 303A by Telephonics Corp./PRD Instruments obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 303A 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 303A?
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 303A?
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.