● ISO 9001:2015 · ANSI/ESD S20.20-2021 · ERAI Member · GIDEP · Woman-Owned Small Business 760.724.2800 · 855.RH.HAS.IT · info@rhelectronics.com
Bae Systems Information And Electronic Systems Integration Inc.  · Electronic Components

666193-494

Crystal Unit, Quartz

Part Number666193-494
ManufacturerBae Systems Information And Electronic Systems Integration Inc.
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Overall Length0.734 INCHES MINIMUM AND 0.791 INCHES MAXIMUM
Body Width0.394 INCHES MINIMUM AND 0.401 INCHES MAXIMUM
Shunt Capacitance In Picofarads1.2 MINIMUM AND 1.6 MAXIMUM
Center To Center Distance Between0.184 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
Body Thickness0.142 INCHES MINIMUM AND 0.149 INCHES MAXIMUM
Terminal Diameter0.038 INCHES MINIMUM AND 0.042 INCHES MAXIMUM
Mode Of OscillationFUNDAMENTAL
Terminal Length0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM
Style DesignatorOVAL BODY, PIN TERMINALS
Operating Temp Range-40.0 TO 65.0 CELSIUS
Overall Width0.408 INCHES MINIMUM AND 0.428 INCHES MAXIMUM
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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 666193-494 available?
We can source 666193-494 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 666193-494 by Bae Systems Information And Electronic Systems Integration Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 666193-494 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 666193-494?
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 666193-494?
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.