Rockwell Collins · Electronic Components
291-0004-00
Crystal Unit, Quartz
Part Number291-0004-00
ManufacturerRockwell Collins
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-251-4118 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Body Length2.000 INCHES NOMINAL
Drive Level Rating10.0 MILLIWATTS NOMINAL
Style DesignatorOCTAL TUBE BASE
Operating Temp Range-40.0 TO 70.0 CELSIUS
Equivalent Resistance Value In Ohm30.0 NOMINAL
Frequency Tolerance For Operating-0.010 TO 0.010
Diameter1.298 INCHES NOMINAL
Overall Length2.560 INCHES MAXIMUM
Specified Frequency100.000 KILOHERTZ
Circuit ResonanceSERIES RESONANCE
Overall Diameter1.328 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 291-0004-00 available?
We can source 291-0004-00 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 291-0004-00 by Rockwell Collins obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 291-0004-00 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 291-0004-00?
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 291-0004-00?
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.