MIL-SPEC · Electronic Components
M19648/1-121
Relay, Thermal
Part NumberM19648/1-121
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-402-7455 (NSN)
Federal Item NameRELAY,THERMAL
Federal Supply Class5945 — Relays and Solenoids
Contact Maximum Voltage Rating In250.0 AC AND 32.0 DC
Overall Width1.138 INCHES NOMINAL
Heater Power Rating In Watts4.5
Overall Length2.650 INCHES NOMINAL
Test Data Document81349-MIL-R-19648 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Heater Voltage Rating In Volts28.0
Overall Height1.000 INCHES NOMINAL
Delay Time In Seconds12.0 ADJUSTABLE OPERATE MINIMUM AND 22.0 ADJUSTABLE OPERATE MAXIMUM
Environmental ProtectionHERMETIC
Mounting Facility Type And Quantit2 UNTHREADED HOLE(S)
Terminal Type And Quantity7 WIRE HOOK
Cancelled NSN5945-00-712-0518 (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 M19648/1-121 available?
We can source M19648/1-121 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 M19648/1-121 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M19648/1-121 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 M19648/1-121?
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 M19648/1-121?
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.