Gems Sensors · Electronic Components
1801
Liquid Level Sensor
Part Number1801
ManufacturerGems Sensors
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-078-3355 (NSN)
Federal Item NameSWITCH,LIQUID LEVEL
Federal Supply Class5930 — Switches
Electrical Connection TypeCABLE
Actuation MethodBUOYANCY
Overall Diameter1.188 INCHES NOMINAL
Float Quantity1
Maximum Current Rating0.2 AMPERES RESISTIVE LOAD
Voltage Rating At Maximum Rated Cu50.0 VOLTS
Mounting PositionVERTICAL
Mounting MethodTHREAD
Contact ArrangementSPST,NORMALLY OPEN OR NORMALLY CLOSED
Tank Insertion Length2.593 INCHES NOMINAL
Current Rating At Maximum Rated Vo0.04 AMPERES RESISTIVE LOAD
Cancelled NSN5930-01-030-9803 (cancelled)
Reliability IndicatorNOT ESTABLISHED
Thread Series DesignatorUNS SINGLE GROUP
Body Height1.375 INCHES NOMINAL
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage15.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Distance Between Mounting Facility0.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Frequency Rating50.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM SINGLE COMPONENT
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 1801 available?
We can source 1801 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 1801 by Gems Sensors obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1801 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 1801?
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 1801?
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.