Raytheon Company · Electronic Components
999989-1
Switch, Thermostatic
Part Number999989-1
ManufacturerRaytheon Company
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-077-5917 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Contact AdjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
Contact Load Current Rating10.0 AMPERES RESISTIVE LOAD THIRD VOLTAGE
Contact Stimulus Rating110.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 95.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
Style DesignatorDISC W/FLANGE
Contact Voltage Rating In Volts120.0 AC AT SEA LEVEL SECOND VOLTAGE
Operating Temp Rating-85.0 FAHRENHEIT MINIMUM AND 257.0 FAHRENHEIT MAXIMUM
Terminal TypeTAB W/SCREW
Body Diameter1.200 INCHES NOMINAL
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Overall Length1.812 INCHES NOMINAL
Unthreaded Mounting Hole Diameter0.218 INCHES NOMINAL
Vendor Part Numbers256T095A110
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 999989-1 available?
We can source 999989-1 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 999989-1 by Raytheon Company obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 999989-1 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 999989-1?
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 999989-1?
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.