Shallco · Electronic Components
T257G
Attenuator, Variable
Part NumberT257G
ManufacturerShallco
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-257-9487 (NSN)
Federal Item NameATTENUATOR,VARIABLE
Federal Supply Class5985 — Antennas and Waveguides
Mounting Facility PatternTWO POSITION IN-LINE
Step Position Quantity20
Application DesignAUDIO
Mounting Facility Nominal Screw Th0.164 INCHES
Distance Between Mounting Facility1.500 INCHES NOMINAL
Mounting Facility Type And Quantit2 THREADED HOLE(S)
Mounting Facility Screw Thread SerUNIFIED NATIONAL COARSE (UNC)
Terminal Type And Quantity3 TAB, SOLDER LUG
Schematic Diagram Designator"T"
Frequency Range0.000 KILOHERTZ MINIMUM AND 20.000 KILOHERTZ MAXIMUM
Body Diameter2.250 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 T257G available?
We can source T257G 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 T257G by Shallco obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If T257G 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 T257G?
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 T257G?
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.