Lockheed Martin Corporation · Electronic Components
176303
Ring Assembly, Electrical Contact
Part Number176303
ManufacturerLockheed Martin Corporation
LifecycleStocked
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-503-9507 (NSN)
Federal Item NameRING ASSEMBLY,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Overall Length0.938 INCHES NOMINAL
Overall Diameter0.906 INCHES NOMINAL
Surface TreatmentSILVER ALLOY RING
Contact Ring Quantity2
FSC Application DataCOMPASS,GYRO
Diameter0.703 INCHES NOMINAL
Width0.156 INCHES NOMINAL
Mounting Configuration0.641 IN. DIA CENTER MTG HOLE
ProducttraceabilityNo
RohscompliantTBA
IscanonicalY
Hazardousfalse
RohsphthalatescompliantTBA
UseccnUnknown
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 176303 available?
We can source 176303 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 176303 by Lockheed Martin Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 176303 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 176303?
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 176303?
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.