MIL-SPEC · Electronic Components
CR81/U39M90000
Crystal Unit, Quartz
Part NumberCR81/U39M90000
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-926-2659 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
MaterialGLASS COVER HOLDER
Test Data Document81349-MILC-3098 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA
Body Length0.530 INCHES MAXIMUM
Body Width0.402 INCHES MAXIMUM
Style DesignatorTUBE BODY, WIRE LEADS
Overall Thickness0.183 INCHES MAXIMUM
Frequency Tolerance For Operating-0.005 TO 0.005 AND -0.0010 TO 0.0010
Center To Center Distance Between0.184 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
Equivalent Resistance Value In Ohm50.0 MAXIMUM
Drive Level Rating1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM
Overall Length0.753 INCHES MINIMUM AND 0.778 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 CR81/U39M90000 available?
We can source CR81/U39M90000 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 CR81/U39M90000 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CR81/U39M90000 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 CR81/U39M90000?
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 CR81/U39M90000?
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.