Us Army Aviation And Missile Command · Electronic Components
9975209-28
Crystal Unit, Quartz
Part Number9975209-28
ManufacturerUs Army Aviation And Missile Command
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-864-0364 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Frequency Tolerance For Operating-0.005 TO 0.005
Overall Width0.757 INCHES NOMINAL
Operating Temp Range-55.0 TO 90.0 CELSIUS
Center To Center Distance Between0.486 INCHES NOMINAL
Style DesignatorOVAL BODY, PIN TERMINALS
Body Length0.775 INCHES NOMINAL
Terminal Length0.248 INCHES NOMINAL
Specified Frequency51.000 MEGAHERTZ
Mode Of OscillationTHIRD OVERTONE
Overall Length1.023 INCHES NOMINAL
Overall Thickness0.352 INCHES NOMINAL
Vendor Part NumbersCR51U51-000KC
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 9975209-28 available?
We can source 9975209-28 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 9975209-28 by Us Army Aviation And Missile Command obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 9975209-28 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 9975209-28?
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 9975209-28?
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.