MIL-SPEC · Electronic Components
CR23U40444-4KC
Crystal Unit, Quartz
Part NumberCR23U40444-4KC
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-267-6048 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Specified Frequency40.4444 MEGAHERTZ
Style DesignatorOVAL BODY, PIN TERMINALS
Body Length0.755 INCHES MINIMUM AND 0.775 INCHES MAXIMUM
Overall Thickness0.338 INCHES MINIMUM AND 0.343 INCHES MAXIMUM
Frequency Tolerance For Operating-0.005 TO 0.005
Center To Center Distance Between0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM
Operating Temp Range-55.0 TO 90.0 CELSIUS
Terminal Length0.223 INCHES MINIMUM AND 0.248 INCHES MAXIMUM
Overall Length0.998 INCHES MINIMUM AND 1.003 INCHES MAXIMUM
Overall Width0.745 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
Terminal Diameter0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM
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 CR23U40444-4KC available?
We can source CR23U40444-4KC 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 CR23U40444-4KC by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CR23U40444-4KC 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 CR23U40444-4KC?
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 CR23U40444-4KC?
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.