MIL-SPEC · Electronic Components
CR38A/U28K50000
Crystal Unit, Quartz
Part NumberCR38A/U28K50000
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-959-4462 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Body Thickness0.317 INCHES MAXIMUM
Test Data Document81349-MILC3098/55 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Mode Of OscillationFUNDAMENTAL
Style DesignatorTUBE BODY, WIRE LEADS
MaterialGLASS COVER HOLDER
Frequency Tolerance For Operating-0.012 TO 0.012 AND -0.050 TO 0.050
Drive Level Rating0.10 MILLIWATTS NOMINAL AND 0.08 MILLIWATTS MINIMUM AND 0.12 MILLIWATTS MAXIMUM
Equivalent Resistance Value In Ohm110000.0 NOMINAL
Operating Temp Range-40.0 TO 70.0 CELSIUS
Shunt Capacitance In Picofarads6.1 NOMINAL AND 5.2 MINIMUM AND 7.0 MAXIMUM
Specified Frequency28.500 KILOHERTZ
Cancelled NSN5955-00-538-2537 (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 CR38A/U28K50000 available?
We can source CR38A/U28K50000 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 CR38A/U28K50000 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CR38A/U28K50000 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 CR38A/U28K50000?
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 CR38A/U28K50000?
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.