Home /
Catalog / US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir / SM-C-500878
US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-C-500878
Crystal Unit, Quartz
Part NumberSM-C-500878
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-725-3721 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Body Width0.535 INCHES MAXIMUM
Terminal Diameter0.038 INCHES MINIMUM AND 0.042 INCHES MAXIMUM
Equivalent Resistance Value In Ohm400.0 MAXIMUM
Frequency Tolerance For Operating-0.005 TO 0.005
Center To Center Distance Between0.267 INCHES MINIMUM AND 0.283 INCHES MAXIMUM
Style DesignatorOVAL BODY, PIN TERMINALS
Overall Length0.889 INCHES NOMINAL
Body Length0.650 INCHES MAXIMUM
Terminal Length0.239 INCHES NOMINAL
Shunt Capacitance In Picofarads2.6 MINIMUM AND 3.0 MAXIMUM
Circuit ResonanceSERIES RESONANCE
Vendor Part Numbers666092-097
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-C-500878 available?
We can source SM-C-500878 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-C-500878 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-C-500878 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-C-500878?
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-C-500878?
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.