MIL-SPEC · Electronic Components
CR47/U197K4500
Crystal Unit, Quartz
Part NumberCR47/U197K4500
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-905-7722 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Load Capacitance In Picofarads20.0 NOMINAL AND 19.5 MINIMUM AND 20.5 MAXIMUM
Terminal Length0.238 INCHES NOMINAL
Test Data Document81349-MILC3098 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA
Controlled Reference Temp75.0 CELSIUS
Overall Thickness0.352 INCHES MAXIMUM
Circuit ResonanceANTIRESONANCE
Center To Center Distance Between0.486 INCHES NOMINAL
Frequency Tolerance For Operating-0.002 TO 0.002
Frequency Tolerance At Reference T-0.002 TO 0.002
Equivalent Resistance Value In Ohm5300.0 NOMINAL
Operating Temp Range+70.0 TO 80.0 CELSIUS
Cancelled NSN5955-00-670-5079 (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 CR47/U197K4500 available?
We can source CR47/U197K4500 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 CR47/U197K4500 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CR47/U197K4500 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 CR47/U197K4500?
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 CR47/U197K4500?
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.