Northrop Grumman Support Services · Electronic Components
128C850H04
Crystal Unit, Quartz
Part Number128C850H04
ManufacturerNorthrop Grumman Support Services
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-01-277-0762 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Diameter0.500 INCHES NOMINAL
Operating Temp Range-10.0 TO 60.0 CELSIUS
Mode Of OscillationFIFTH OVERTONE
Center To Center Distance Between0.200 INCHES NOMINAL
Equivalent Resistance Value In Ohm80.0 MAXIMUM
Frequency Tolerance For Operating-0.001 TO 0.001
Second Center To Center Distance B0.200 INCHES NOMINAL
Drive Level Rating500.0 MICROWATTS MAXIMUM
Style DesignatorHAT TYPE, 5 WIRE LEADS
Terminal Diameter0.030 INCHES NOMINAL
Circuit ResonanceSERIES RESONANCE
Vendor Part NumbersWH501
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 128C850H04 available?
We can source 128C850H04 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 128C850H04 by Northrop Grumman Support Services obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 128C850H04 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 128C850H04?
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 128C850H04?
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.