BAE Systems Information and Electronic Systems Integration · Electronic Components
666141-143
Crystal Unit, Quartz
Part Number666141-143
ManufacturerBAE Systems Information and Electronic Systems Integration
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-893-8273 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Circuit ResonanceSERIES RESONANCE
Operating Temp Range-55.0 TO 90.0 CELSIUS
Overall Length0.998 INCHES MINIMUM AND 1.023 INCHES MAXIMUM
Frequency Tolerance For Operating-0.0025 TO 0.0025
Drive Level Rating1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM
FSC Application DataPIEZOELECTRIC CRYSTALS
Equivalent Resistance Value In Ohm40.0 MAXIMUM
Style DesignatorOVAL BODY, PIN TERMINALS
Body Width0.725 INCHES MAXIMUM
Specified Frequency40.518519 MEGAHERTZ
Mode Of OscillationTHIRD OVERTONE
Cancelled NSN5955-00-901-5799 (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 666141-143 available?
We can source 666141-143 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 666141-143 by BAE Systems Information and Electronic Systems Integration obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 666141-143 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 666141-143?
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 666141-143?
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.