MIL-SPEC · Electronic Components
CR50A/U40K00000
Crystal Unit, Quartz
Part NumberCR50A/U40K00000
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-082-4012 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Style DesignatorOVAL BODY, PIN TERMINALS
Body Length1.526 INCHES MAXIMUM
Overall Length1.774 INCHES MAXIMUM
Specified Frequency40.000 KILOHERTZ
Circuit ResonanceSERIES RESONANCE
Operating Temp Range-40.0 TO 70.0 CELSIUS
Center To Center Distance Between0.486 INCHES NOMINAL
Shunt Capacitance In Picofarads6.7 NOMINAL AND 5.7 MINIMUM AND 7.7 MAXIMUM
Terminal Diameter0.050 INCHES NOMINAL
Terminal Length0.238 INCHES NOMINAL
Frequency Tolerance For Operating-0.012 TO 0.012
Cancelled NSN5955-00-890-9756 (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 CR50A/U40K00000 available?
We can source CR50A/U40K00000 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 CR50A/U40K00000 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CR50A/U40K00000 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 CR50A/U40K00000?
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 CR50A/U40K00000?
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.