Barksdale, Inc. · Electronic Components
420E20L
Switch, Pressure
Part Number420E20L
ManufacturerBarksdale, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-642-9393 (NSN)
Federal Item NameSWITCH,PRESSURE
Federal Supply Class5930 — Switches
Pressure Switch TypeGAGE
Contact Stimulus Rating1.30 DIFFERENTIAL POINT NOMINAL POUNDS PER SQUARE INCH
Contact Voltage Rating In Volts460.0 AC AT SEA LEVEL FIRST VOLTAGE
Mounting Facility PatternTWO POSITION IN-LINE
Contact Adjustment Range+0.50 TO 80.00 ACTUATION POINT POUNDS PER SQUARE INCH
Contact AdjustabilityACTUATION POINT ADJUSTABLE
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED
Thread Series DesignatorNPT SINGLE PRESSURE CONNECTION
Overall Length4.000 INCHES NOMINAL
Contact Load Current Rating10.0 AMPERES RESISTIVE LOAD THIRD VOLTAGE
Nominal Thread Size0.250 INCHES SINGLE PRESSURE CONNECTION
Vendor Part NumbersDIS-A3, 2753-1001P1
Overall Width3.605 INCHES MINIMUM AND 3.635 INCHES MAXIMUM
Contact Adjustment TypeEXTERNAL ACTUATION POINT SCREW
Style DesignatorCYLINDRICAL W/MOUNTING LUGS
Body Diameter2.985 INCHES MINIMUM AND 3.015 INCHES MAXIMUM
Terminal TypeWIRE LEAD
Contact Action StimulusINCREASE
Mounting MethodBRACKET(S)
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 420E20L available?
We can source 420E20L 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 420E20L by Barksdale, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 420E20L 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 420E20L?
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 420E20L?
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.