Safran Power USA · Electronic Components
W101U3RS4R
Switch, Push
Part NumberW101U3RS4R
ManufacturerSafran Power USA
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-548-3573 (NSN)
Federal Item NameSWITCH,PUSH
Federal Supply Class5930 — Switches
Thread Series DesignatorUNEF
Thread Class2A
Actuator Diameter0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM
Overall Width1.047 INCHES MINIMUM AND 1.077 INCHES MAXIMUM
ColorRED SINGLE ACTUATOR
Test Data Document97151-66B3850 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURE
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION SINGLE SWITCH UNIT
Thread Quantity Per Inch24
Nominal Thread Size0.625 INCHES
Contact Load Current Rating At Max10.000 AMPERES RESISTIVE DC AND 5.000 AMPERES INDUCTIVE DC AND 3.000 AMPERES LAMP DC AND 15.000 AMPERES INDUCTIVE AC
Bushing Length0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM
Vendor Part Numbers66B3850
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 W101U3RS4R available?
We can source W101U3RS4R 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 W101U3RS4R by Safran Power USA obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If W101U3RS4R 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 W101U3RS4R?
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 W101U3RS4R?
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.