Home /
Catalog / US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir / SM-A-374627-28
US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-A-374627-28
Crystal Unit, Quartz
Part NumberSM-A-374627-28
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-933-9852 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Overall Thickness0.352 INCHES MAXIMUM
Body Width0.725 INCHES MAXIMUM
Specified Frequency685.440 KILOHERTZ
Mode Of OscillationFUNDAMENTAL
Center To Center Distance Between0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM
Frequency Tolerance For Operating-0.006 TO 0.006
Operating Temp Range-10.0 TO 75.0 CELSIUS
Equivalent Resistance Value In Ohm300.0 MINIMUM AND 3000.0 MAXIMUM
Drive Level Rating0.1 MILLIWATTS MINIMUM AND 1.0 MILLIWATTS MAXIMUM
Style DesignatorOVAL BODY, PIN TERMINALS
Body Length0.775 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 SM-A-374627-28 available?
We can source SM-A-374627-28 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 SM-A-374627-28 by US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SM-A-374627-28 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 SM-A-374627-28?
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 SM-A-374627-28?
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.