Northrop Grumman Systems Corporation · Electronic Components
221900
Relay Assembly
Part Number221900
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-962-7198 (NSN)
Federal Item NameRELAY ASSEMBLY
Federal Supply Class5945 — Relays and Solenoids
Furnished ItemsCONNECTOR; SOCKET
Accessory Component Quantity24
Overall Length9.000 INCHES NOMINAL
Overall Height1.591 INCHES NOMINAL
Individual Relay Quantity21
Mounting FacilityMOUNTING BOARD
Identifying NumberLL26AAK18 PART NO. AND LL26AAK12 PART NO. AND LL26AAK6 PART NO. AND 26WDK18 PART NO.
Mounting ConfigurationTWO 0.209 IN. DIA HOLES SPACED 8.500 IN C TO C
Controlling AgencyFILTERS,INC
Relay TypeARMATURE
Overall Width6.900 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 221900 available?
We can source 221900 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 221900 by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 221900 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 221900?
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 221900?
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.