Thales USA · Electronic Components
37021
Relay, Thermal
Part Number37021
ManufacturerThales USA
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-557-2746 (NSN)
Federal Item NameRELAY,THERMAL
Federal Supply Class5945 — Relays and Solenoids
Overall Diameter3.250 INCHES MAXIMUM
Contact Maximum Voltage Rating In250.0 AC AND 150.0 DC
Mounting Facility Type And Quantit1 OCTAL BASE PLUG-IN
Contact Maximum Current Rating In3.0 AC OR 3.0 DC
Delay Time In Seconds8.0 FIXED OPERATE MINIMUM AND 12.0 FIXED OPERATE MAXIMUM
Terminal Type And Quantity4 PIN
Contact ArrangementSINGLE POLE, SINGLE THROW, NORMALLY OPEN
Overall Length1.275 INCHES MAXIMUM
Heater Power Rating In Watts6.0
Environmental ProtectionDUSTPROOF
Heater Voltage Rating In Volts117.0
Vendor Part Numbers3702
Cancelled NSN5945-00-578-2935 (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 37021 available?
We can source 37021 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 37021 by Thales USA obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 37021 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 37021?
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 37021?
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.