Keystone Electronics · Electronic Components
353
STANDOFF F-F HINGED 6-32 THREAD
Part Number353
ManufacturerKeystone Electronics
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-888-1463 (NSN)
Federal Item NameDUMMY LOAD,ELECTRICAL
Federal Supply Class5985 — Antennas and Waveguides
Voltage Standing Wave Ratio1.02
Operating PositionALL POSITIONS
Power Rating6.000 WATTS AVERAGE
Overall Diameter3.625 INCHES NOMINAL
Cooling MethodSELF-COOLED
Voltage Standing Wave Ratio Freque+3.950 TO 5.850 GIGAHERTZ
Termination TypeWAVEGUIDE FLANGE
Waveguide Flange DesignationUG-149A/U
Body Width0.969 INCHES NOMINAL
Style DesignatorWAVEGUIDE MOUNTED
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Overall Width1.000 INCHES NOMINAL
Impedance Rating Per Channel10.000 KILOHMS INPUT CHANNEL AND 375.000 OHMS OUTPUT CHANNEL
Basic Shape StyleRECTANGULAR OR SQUARE
Average Life MeasurementNOT RATED
External Dc Operating Voltage In V28.0 NOMINAL SINGLE VOLTAGE
Overall Length1.625 INCHES NOMINAL
Overall Height1.000 INCHES NOMINAL
Vendor Part NumbersC7003148009
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 353 available?
We can source 353 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 353 by Keystone Electronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 353 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 353?
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 353?
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.