MIL-SPEC · Electronic Components
MS27221-D1
Relay, Electromagnetic
Part NumberMS27221-D1
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-111-1663 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Arc Quenching MethodAIR
Main Contact Load Current Rating A20.0 AMPERES AC AND 20.0 AMPERES DC LAMP LOAD
Environmental ProtectionHERMETIC
Time Delay0.015 SECONDS MAXIMUM FIXED RELEASE TIME
MaterialALUMINUM OR STEEL CASE
Nonpile Up Main Contact Arrangemen6 POLE, SINGLE THROW, NORMALLY OPEN, DOUBLE MAKE, MOMENTARY ACTION
Overall Height3.642 INCHES MAXIMUM
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Center To Center Distance Between2.687 INCHES NOMINAL SINGLE MOUNTING FACILITY
Storage TypeGENERAL PURPOSE WAREHOUSE
Terminal Type And Quantity11 THREADED STUD ALL FUNCTIONS
ESD/EMICode A — ESD/EMI sensitive item
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 MS27221-D1 available?
We can source MS27221-D1 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 MS27221-D1 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS27221-D1 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 MS27221-D1?
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 MS27221-D1?
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.