Rockwell Collins · Electronic Components
972-1557-000
Relay, Electromagnetic
Part Number972-1557-000
ManufacturerRockwell Collins
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-050-9996 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Overall Length1.260 INCHES NOMINAL
Nominal Operating Current Rating A60.0 MILLIAMPERES DC SINGLE WINDING
Main Contact Maximum Voltage Ratin115.0 AC AND 28.0 DC
Main Contact Load Current Rating A6.0 AMPERES AC AND 3.0 AMPERES DC RESISTIVE LOAD
Mounting Facility Type And Quantit4 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Nominal Thread Size0.112 INCHES SINGLE MOUNTING FACILITY
Auxiliary Contact Maximum Voltage115.0 AC AND 115.0 DC
Center To Center Distance Between0.377 INCHES NOMINAL SINGLE MOUNTING FACILITY
Pile Up Main Contact Form Arrangem1A
Thread Quantity Per Inch40 SINGLE MOUNTING FACILITY
Pile Up Auxiliary Contact Form Arr2C
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 972-1557-000 available?
We can source 972-1557-000 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 972-1557-000 by Rockwell Collins obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 972-1557-000 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 972-1557-000?
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 972-1557-000?
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.