Honeywell · Integrated Circuits
1LS3
Basic / Snap Action / Limit Switches 0.5-14NPT 1.5-3.5 Lvr 1NC/1NO SPDT
Part Number1LS3
ManufacturerHoneywell
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-906-1436 (NSN)
Federal Item NameSWITCH,SENSITIVE
Terminals4 SCREW
Body StyleHOLE MOUNTED
Features ProvidedACTUATOR SEAL
Nominal Thread Size0.164 INCHES
Inclosure TypeFULLY INCLOSED
Contact Load Current Rating At Max400.000 MILLIAMPERES RESISTIVE DC AND 10.000 AMPERES RESISTIVE AC
Switch Release Force8.0 INCH-OUNCES MINIMUM
Nonpile Up Contact Arrangement1 POLE, DOUBLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
Actuator Movement20.0 PRETRAVEL DEGREES MAXIMUM AND 30.0 OVERTRAVEL DEGREES MINIMUM AND 12.0 DIFFERENTIAL DEGREES MAXIMUM
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Federal Supply Class5930 — Switches
Terminal Type And Quantity4 SCREW
Actuator Roller Diameter0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM
Housing Length3.640 INCHES MINIMUM AND 3.760 INCHES MAXIMUM
Housing Width1.540 INCHES MINIMUM AND 1.600 INCHES MAXIMUM
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 1LS3 available?
We can source 1LS3 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 1LS3 by Honeywell obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1LS3 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 1LS3?
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 1LS3?
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.