Lockheed Martin Corporation · Electronic Components
201822
Ring Assembly, Electrical Contact
Part Number201822
ManufacturerLockheed Martin Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-503-9487 (NSN)
Federal Item NameRING ASSEMBLY,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Mounting ConfigurationTHREE 0.156 IN. DIA MTG HOLES,COUNTERSUNK TO 0.250 IN. DIA,SPACED 120 DEG APART ON A 3.750 IN. BOLT CIRCLE
Contact Ring Quantity6
Diameter3.188 INCHES NOMINAL
Width0.219 INCHES NOMINAL
FSC Application DataCOMPASS,GYRO
Overall Length2.156 INCHES NOMINAL
Overall Diameter4.156 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 201822 available?
We can source 201822 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 201822 by Lockheed Martin Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 201822 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 201822?
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 201822?
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.