PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CR141/U77M33330Crystal Unit,quartz

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5955-01-237-6496 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-01-237-6496 — this item is cataloged by the U.S. Government under National Stock Number 5955-01-237-6496. Primary manufacturer part number: CR141/U77M33330.
Features
  • Crystal Unit,quartz — FSC 5955
  • Terminal Length: 0.5003 INCHES MINIMUM IN
  • Operating Temp Range: -30.0 TO 55.0 CELSIUS AND -55.0 TO 65.0 CELSIUS DEGC
  • Terminal Diameter: 0.015 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
  • Circuit Resonance: SERIES RESONANCE
  • Body Width: 0.402 INCHES MAXIMUM IN
  • Test Data Document: 81349-MIL-C-3098/62 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Material: GLASS COVER HOLDER
Applications
  • Applications requiring Glass Cover Holder construction
General Description

The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-237-6496, is classified within Federal Supply Class 5955 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5955-01-237-6496
Primary Part NumberCR141/U77M33330
Item NameCrystal Unit,quartz
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Terminal Length0.5003 INCHES MINIMUM IN
Operating Temp Range-30.0 TO 55.0 CELSIUS AND -55.0 TO 65.0 CELSIUS DEGC
Terminal Diameter0.015 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
Circuit ResonanceSERIES RESONANCE
Body Width0.402 INCHES MAXIMUM IN
Test Data Document81349-MIL-C-3098/62 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MaterialGLASS COVER HOLDER
Center to Center Distance Between Terminals0.184 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
Drive Level Rating1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM
Equivalent Resistance Value in Ohms50.0 MAXIMUM
Frequency Tolerance for Operating Temp in Percent-0.0025 TO 0.0025 AND -0.0045 TO 0.0045
Mode of OscillationFIFTH OVERTONE AND THIRD OVERTONE
Overall Thickness0.183 INCHES MAXIMUM IN
Shunt Capacitance in Picofarads7.0 MAXIMUM
Body Thickness0.150 INCHES MAXIMUM IN
Style DesignatorOVAL BODY, PIN TERMINALS
Specification/standard Data81349-MIL-C-3098/122 GOVERNMENT SPECIFICATION
Specified Frequency77.3333 MEGAHERTZ
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5955-01-188-6936 INTERCHANGEABLE
Crystal Unit,quartz
5955-01-192-0002 INTERCHANGEABLE
Crystal Unit,quartz
5955-01-196-1144 INTERCHANGEABLE
Crystal Unit,quartz
5955-01-202-9483 INTERCHANGEABLE
Crystal Unit,quartz
5955-01-221-9514 INTERCHANGEABLE
Crystal Unit,quartz
5955-01-227-5171 INTERCHANGEABLE
Crystal Unit,quartz
5955-01-227-5186 INTERCHANGEABLE
Crystal Unit,quartz
5955-01-237-2387 INTERCHANGEABLE
Crystal Unit,quartz
5955-01-237-6492 INTERCHANGEABLE
Crystal Unit,quartz
5955-01-237-6493 INTERCHANGEABLE
Crystal Unit,quartz
Cross-Reference Index
Part NumberManufacturer
CR141/U77M33330 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-3098/122 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-C-3098/122 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5955-01-188-6936INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-01-192-0002INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-01-196-1144INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-01-202-9483INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-01-221-9514INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-01-227-5171INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-01-227-5186INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-01-237-2387INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-01-237-6492INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-01-237-6493INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-01-237-6494INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-01-237-6495INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ

Frequently Asked Questions

What is NSN 5955-01-237-6496?

NSN 5955-01-237-6496 is a Crystal Unit,quartz, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5955 (No Item Name Available). Status: active.

What are the part numbers for NSN 5955-01-237-6496?

NSN 5955-01-237-6496 has 3 cross-referenced part numbers: CR141/U77M33330 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-3098/122 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-C-3098/122 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5955-01-237-6496?

There are 12 known substitutes for 5955-01-237-6496: 5955-01-188-6936, 5955-01-192-0002, 5955-01-196-1144 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CR141/U77M33330?

Key specifications for CR141/U77M33330: Terminal Length: 0.5003 INCHES MINIMUM IN; Operating Temp Range: -30.0 TO 55.0 CELSIUS AND -55.0 TO 65.0 CELSIUS DEGC; Overall Width: 0.435 INCHES MAXIMUM IN; Terminal Diameter: 0.015 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN. 20 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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