US Dept of Transportation Federal Aviation Administration · Electronic Components
S181-20F3
Switch, Push
Part NumberS181-20F3
ManufacturerUS Dept of Transportation Federal Aviation Administration
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-042-9611 (NSN)
Federal Item NameSWITCH,PUSH
Federal Supply Class5930 — Switches
Actuator StyleROUND
Thread Series DesignatorUN
Terminal Type And Quantity6 TAB, SOLDER LUG
ColorWHITE SINGLE ACTUATOR
Contact Load Current Rating At Max2.000 AMPERES RESISTIVE DC AND 2.000 AMPERES RESISTIVE AC
Inclosure TypeFULLY INCLOSED
Illuminated Actuator ColorWHITE SINGLE ACTUATOR
Thread Quantity Per Inch32
Nominal Thread Size0.562 INCHES
Body Diameter0.520 INCHES NOMINAL
Actuator Diameter0.375 INCHES NOMINAL
Vendor Part Numbers4037398-0702
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 S181-20F3 available?
We can source S181-20F3 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 S181-20F3 by US Dept of Transportation Federal Aviation Administration obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If S181-20F3 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 S181-20F3?
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 S181-20F3?
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.