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Catalog / Department of the Army HQ United States Army Communications Research and Development Command / SM-C-331918
Department of the Army HQ United States Army Communications Research and Development Command · Electronic Components
SM-C-331918
Relay, Thermal
Part NumberSM-C-331918
ManufacturerDepartment of the Army HQ United States Army Communications Research and Development Command
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-502-3247 (NSN)
Federal Item NameRELAY,THERMAL
Federal Supply Class5945 — Relays and Solenoids
Environmental ProtectionWATERTIGHT
Heater Voltage Rating In Volts6.3
Contact Maximum Current Rating In6.0 AC OR 1.0 DC
Contact ArrangementSINGLE POLE, SINGLE THROW, NORMALLY OPEN
Overall Diameter0.797 INCHES NOMINAL
Delay Time In Seconds18.0 FIXED OPERATE MINIMUM AND 22.0 FIXED OPERATE MAXIMUM
Mounting Facility Type And Quantit1 PLUG-IN
Terminal Type And Quantity7 PIN
Heater Power Rating In Watts4.0
Contact Maximum Voltage Rating In125.0 AC
Overall Length2.375 INCHES NOMINAL
Cancelled NSN5945-00-636-9711 (cancelled)
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 SM-C-331918 available?
We can source SM-C-331918 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 SM-C-331918 by Department of the Army HQ United States Army Communications Research and Development Command obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SM-C-331918 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 SM-C-331918?
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 SM-C-331918?
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.