Department of the Army · Electronic Components
71-3021-CR4U1.003125MHZ
Crystal Unit, Quartz
Part Number71-3021-CR4U1.003125MHZ
ManufacturerDepartment of the Army
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-129-8758 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Terminal Length0.407 INCHES MINIMUM AND 0.469 INCHES MAXIMUM
Style DesignatorRECTANGULAR BODY, PIN TERMINALS
Overall Length1.469 INCHES MINIMUM AND 1.531 INCHES MAXIMUM
Mode Of OscillationFUNDAMENTAL
Frequency Tolerance For Operating-0.020 TO 0.020
Overall Thickness0.4275 INCHES MINIMUM AND 0.4575 INCHES MAXIMUM
Specified Frequency1.003125 MEGAHERTZ
Overall Width1.094 INCHES MINIMUM AND 1.172 INCHES MAXIMUM
Operating Temp Range-40.0 TO 70.0 CELSIUS
Center To Center Distance Between0.483 INCHES MINIMUM AND 0.489 INCHES MAXIMUM
Body Length1.062 INCHES NOMINAL
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 71-3021-CR4U1.003125MHZ available?
We can source 71-3021-CR4U1.003125MHZ 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 71-3021-CR4U1.003125MHZ by Department of the Army obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 71-3021-CR4U1.003125MHZ 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 71-3021-CR4U1.003125MHZ?
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 71-3021-CR4U1.003125MHZ?
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.