Lockheed Martin · Electronic Components
681280
Synchro, Transmitter
Part Number681280
ManufacturerLockheed Martin
AvailabilityAvailable to order — request a quote
Specifications
NSN5990-00-503-2457 (NSN)
Federal Item NameSYNCHRO,TRANSMITTER
Federal Supply Class5990 — Synchros and Resolvers
Flange Thickness0.0930 INCHES NOMINAL
Overall Length2.1620 INCHES NOMINAL
Flange Diameter1.4360 INCHES MINIMUM AND 1.4370 INCHES MAXIMUM
Pilot Diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM
Undercut Diameter1.3120 INCHES NOMINAL
Undercut Width0.0780 INCHES NOMINAL
Shoulder Diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM
Body StyleSTANDARD ROUND C
Rotor Dc Resistance In Ohms16.00 NOMINAL
Length0.1320 INCHES NOMINAL SHOULDER
Terminal Type And Quantity5 WIRE LEAD
Vendor Part NumbersAY201S19B, CR15DS1A033, CRH15DS1A033
Cancelled NSN5990-00-759-9302 (cancelled)
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 681280 available?
We can source 681280 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 681280 by Lockheed Martin obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 681280 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 681280?
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 681280?
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.