Westinghouse Electric Corp. · Electronic Components
442B
Capacitor, Fixed, Metallized, Paper
Part Number442B
ManufacturerWestinghouse Electric Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5910-00-879-8195 (NSN)
Federal Item NameCAPACITOR,FIXED,METALLIZED,PAPER
Federal Supply Class5910 — Capacitors
Body Width0.485 INCHES NOMINAL
Capacitance Value Per Section0.250 MICROFARADS SINGLE SECTION
Distance Between Centerlines Of Mo1.000 INCHES NOMINAL
Mounting Facility Screw Thread SerUNIFIED NATIONAL COARSE (UNC)
Schematic Diagram DesignatorNO COMMON OR GROUNDED ELECTRODE(S)
Body Height3.469 INCHES NOMINAL
Body Length1.149 INCHES NOMINAL
Mounting Facility Type And Quantit2 THREADED MOUNTING STUDS
Nonderated Continuous Voltage Rati300.0 AC-RMS SINGLE SECTION AND 300.0 DC SINGLE SECTION
Tolerance Range Per Section-0.00 TO 70000.00 PICOFARADS SINGLE SECTION
Nonderated Operating Temp-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM
Cancelled NSN5910-00-653-3467 (cancelled)
Body Surface TreatmentNICKEL PLATED
Impedance Rating In Ohms500.0 NOMINAL
Overall Diameter2.000 INCHES NOMINAL
Detector TypeWIRE ANTENNA
Overall Length6.250 INCHES NOMINAL
Frequency Rating0.00395 GIGAHERTZ MINIMUM AND 40.000 GIGAHERTZ MAXIMUM
Usage DesignUSED TO DETECT RADIO FREQUENCY IN WAVEGUIDES
Vendor Part NumbersMX3631U
Wrist Band TypeADJUSTABLE
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 442B available?
We can source 442B 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 442B by Westinghouse Electric Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 442B 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 442B?
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 442B?
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.