MIL-SPEC · Electronic Components
CR79/U3M686400
Crystal Unit, Quartz
Part NumberCR79/U3M686400
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-01-057-4516 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Mode Of OscillationFUNDAMENTAL
Overall Width0.435 INCHES MAXIMUM
Overall Thickness0.183 INCHES MAXIMUM
Equivalent Resistance Value In Ohm50.0 MAXIMUM
Center To Center Distance Between0.192 INCHES NOMINAL
Style DesignatorOVAL BODY, PIN TERMINALS
Drive Level Rating4.0 MILLIWATTS MINIMUM AND 6.0 MILLIWATTS MAXIMUM
Frequency Tolerance For Operating-0.0005 TO 0.0005
Terminal Length0.223 INCHES MINIMUM AND 0.248 INCHES MAXIMUM
Circuit ResonanceSERIES RESONANCE
Operating Temp Range-55.0 TO 105.0 CELSIUS
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 CR79/U3M686400 available?
We can source CR79/U3M686400 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 CR79/U3M686400 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CR79/U3M686400 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 CR79/U3M686400?
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 CR79/U3M686400?
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.