Raytheon · Electronic Components
1540645
Switch, Liquid Level
Part Number1540645
ManufacturerRaytheon
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-174-3576 (NSN)
Federal Item NameSWITCH,LIQUID LEVEL
Federal Supply Class5930 — Switches
Mounting PositionVERTICAL
Contact ArrangementSPST
Mounting MethodFLANGE
Operating Temp Rating-65.0 FAHRENHEIT MINIMUM AND 300.0 FAHRENHEIT MAXIMUM
Tank Insertion Length3.000 INCHES MAXIMUM
Liquid Type For Which DesignedLUBRICANT, OIL
Float Effective Travel2.000 INCHES NOMINAL
Mounting DimensionsMTG BY THREE 0.203 IN. DIA HOLES EQUALLY SPACED ON 0.813 IN. RADIUS
Overall Diameter2.000 INCHES NOMINAL
Dc Voltage Rating28.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT
Electrical Connection TypeCABLE
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 1540645 available?
We can source 1540645 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 1540645 by Raytheon obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1540645 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 1540645?
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 1540645?
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.