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Lockheed Martin Corporation  · Electronic Components

645285

Ring Assembly, Electrical Contact

Part Number645285
ManufacturerLockheed Martin Corporation
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameRING ASSEMBLY,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Overall Diameter5.375 INCHES NOMINAL
Contact Ring Quantity5
FSC Application DataCOMPASS,GYRO
Width0.313 INCHES NOMINAL
Mounting ConfigurationSIX 0.125 IN. DIA MTG HOLES EQUALLY SPACED ON 4.625 IN. DIA BOLT CIRCLE
Overall Height4.125 INCHES NOMINAL
Diameter5.188 INCHES NOMINAL
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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

Frequently asked

Is 645285 available?
We can source 645285 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 645285 by Lockheed Martin Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 645285 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 645285?
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 645285?
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.