MIL-SPEC · Electronic Components
CR53A/U68M27800
Crystal Unit, Quartz
Part NumberCR53A/U68M27800
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-781-0298 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Overall Width0.757 INCHES MAXIMUM
Overall Length1.023 INCHES MAXIMUM
Frequency Tolerance For Operating-0.005 TO 0.005
Center To Center Distance Between0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM
Equivalent Resistance Value In Ohm60.0 NOMINAL
Drive Level Rating16.0 MILLIWATTS MINIMUM AND 24.0 MILLIWATTS MAXIMUM
Body Thickness0.317 INCHES MAXIMUM
Mode Of OscillationFIFTH OVERTONE
Overall Thickness0.352 INCHES MAXIMUM
Specified Frequency68.278 MEGAHERTZ
Body Width0.725 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 CR53A/U68M27800 available?
We can source CR53A/U68M27800 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 CR53A/U68M27800 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CR53A/U68M27800 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 CR53A/U68M27800?
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 CR53A/U68M27800?
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.