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MCM191 — OSCILLATOR,CRYSTAL CONTROLLED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

MCM191: OSCILLATOR,CRYSTAL CONTROLLED.

The OSCILLATOR,CRYSTAL CONTROLLED is a the manufacturer industrial component. Key specifications include inclosure_type: HERMETICALLY SEALED, overall_length: 0.350 INCHES NOMINAL IN, overall_diameter: 0.600 INCHES NOMINAL IN, basic_shape_style: CYLINDRICAL, operating_temp_range: +0.0 TO 50.0 CELSIUS DEGC, frequency_per_channel: 1.0 KILOHERTZ NOMINAL OPERATING CHANNEL. This part is cataloged in the U.S.

Government catalog under NSN 5955-01-005-7902, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MCM191
NSN: 5955-01-005-7902
NIINs: 010057902, 015344096
FSC: 5955 — Oscillators and Piezoelectric Crystals
CAGE: 51774 — Q-TECH CORP DBA Q-TECH CORP (USA)
SPECIFICATIONS
inclosure_typeHERMETICALLY SEALED
overall_length0.350 INCHES NOMINAL IN
overall_diameter0.600 INCHES NOMINAL IN
basic_shape_styleCYLINDRICAL
operating_temp_range+0.0 TO 50.0 CELSIUS DEGC
frequency_per_channel1.0 KILOHERTZ NOMINAL OPERATING CHANNEL
end_item_identificationFILTER, FLUID
external_dc_operating_voltage_in_volts15.0 MAXIMUM SINGLE VOLTAGE
NSN5955-01-005-7902
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available OSCILLATOR,CRYSTAL CONTROLLED TITLE COMPONENT PN MCM191 MFR OSCILLATOR,CRYSTAL CON
KEY FEATURES
•
INCLOSURE TYPE: HERMETICALLY SEALED
•
OVERALL DIAMETER: 0.600 INCHES NOMINAL IN
•
FREQUENCY PER CHANNEL: 1.0 KILOHERTZ NOMINAL OPERATING CHANNEL
•
BASIC SHAPE STYLE: CYLINDRICAL
•
OPERATING TEMP RANGE: +0.0 TO 50.0 CELSIUS DEGC
•
EXTERNAL DC OPERATING VOLTAGE IN VOLTS: 15.0 MAXIMUM SINGLE VOLTAGE
TECHNICAL CHARACTERISTICS
INCLOSURE TYPEHERMETICALLY SEALED
OVERALL DIAMETER0.600 INCHES NOMINAL IN
FREQUENCY PER CHANNEL1.0 KILOHERTZ NOMINAL OPERATING CHANNEL
OVERALL LENGTH0.350 INCHES NOMINAL IN
BASIC SHAPE STYLECYLINDRICAL
OPERATING TEMP RANGE+0.0 TO 50.0 CELSIUS DEGC
EXTERNAL DC OPERATING VOLTAGE IN VOLTS15.0 MAXIMUM SINGLE VOLTAGE
EXTERNAL DC OPERATING VOLTAGE IN VOLTS3.5 MINIMUM SINGLE VOLTAGE
SUBSTITUTES & CROSS-REFERENCES 1
7330486Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is MCM191?
MCM191 is a OSCILLATOR,CRYSTAL CONTROLLED.
What parts can replace MCM191?
There is 1 known substitute for MCM191: 7330486. Substitute compatibility should be verified for your specific system.
What is the NSN for MCM191?
MCM191 is cataloged in the U.S. Government catalog under NSN 5955-01-005-7902. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.