Honeywell · Integrated Circuits
1LS1
Basic / Snap Action / Limit Switches 1NC 1NO SPDT Side Rotary
Part Number1LS1
ManufacturerHoneywell
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-578-2508 (NSN)
Federal Item NameSWITCH,SENSITIVE
Terminals4 SCREW
Mounting MethodUNTHREADED HOLE(S)
Overall Width1.190 INCHES NOMINAL
Overall Height2.280 INCHES NOMINAL
Body StyleHOLE MOUNTED
Special FeaturesCOMPACT ITEM
Switch Actuating Force48.0 INCH-OUNCES MAXIMUM
Maximum Voltage Rating In Volts480.0 AC AND 250.0 DC
Housing Length3.700 INCHES NOMINAL
Center To Center Distance Between2.310 INCHES NOMINAL
Federal Supply Class5930 — Switches
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 1LS1 available?
We can source 1LS1 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 1LS1 by Honeywell obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1LS1 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 1LS1?
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 1LS1?
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.