Altech · Electronic Components
MT4
Terminal Block Tools & Accessories Markg Tag 5x4.8mm Horizontal
Part NumberMT4
ManufacturerAltech
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-153-6533 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Mode Of OscillationFUNDAMENTAL
Style DesignatorOVAL BODY, WIRE LEADS
Frequency Tolerance For Operating-0.050 TO 0.050
Center To Center Distance Between0.184 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
Overall Width0.435 INCHES MAXIMUM
Body Width0.402 INCHES MAXIMUM
Terminal Diameter0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM
Overall Thickness0.183 INCHES MAXIMUM
Overall Length0.530 INCHES MAXIMUM
Circuit ResonanceSERIES RESONANCE
Body Thickness0.150 INCHES MAXIMUM
Vendor Part Numbers19-000008-1
Mounting Facility Type And Quantit8 THREADED STUD(S) ALL MOUNTING FACILITIES
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) ALL MOUNTING FACILITIES
Thread Quantity Per Inch24 ALL MOUNTING FACILITIES
Thread Class2B ALL MOUNTING FACILITIES
Inside Diameter3.062 INCHES NOMINAL
Nominal Thread Size0.190 INCHES ALL MOUNTING FACILITIES
Bolt Circle Diameter3.846 INCHES MINIMUM AND 3.876 INCHES MAXIMUM ALL MOUNTING FACILITIES SINGLE CENTER GROUP
ESD/EMICode A — ESD/EMI sensitive item
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 MT4 available?
We can source MT4 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 MT4 by Altech obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MT4 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 MT4?
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 MT4?
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.