National Security Agency · Electronic Components
0N501721
Relay, Electromagnetic
Part Number0N501721
ManufacturerNational Security Agency
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-126-8204 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Overall Length3.125 INCHES NOMINAL
Main Contact Maximum Voltage Ratin120.0 AC AND 28.0 DC
Main Contact Load Current Rating A125.0 MILLIAMPERES AC AND 1.0 AMPERES DC RESISTIVE LOAD
Precious MaterialGOLD AND SILVER AND RHODIUM
Overall Width1.031 INCHES NOMINAL
Environmental ProtectionSHOCK RESISTANT AND VIBRATION RESISTANT
Winding Quantity1
Surface TreatmentGOLD AND RHODIUM CONTACT
Precious Material And LocationCONTACT SURFACES GOLD AND CONTACTS AND TERMINAL SURFACES SILVER AND CONTACT SURFACES RHODIUM
Center To Center Distance Between2.750 INCHES NOMINAL SINGLE MOUNTING FACILITY
Overall Height3.250 INCHES NOMINAL
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 0N501721 available?
We can source 0N501721 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 0N501721 by National Security Agency obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 0N501721 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 0N501721?
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 0N501721?
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.