PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CR61/U43M33333Crystal Unit,quartz

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5955-00-583-0173 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-00-583-0173 — this item is cataloged by the U.S. Government under National Stock Number 5955-00-583-0173. Primary manufacturer part number: CR61/U43M33333.
Features
  • Crystal Unit,quartz — FSC 5955
  • Mode of Oscillation: THIRD OVERTONE AND FIFTH OVERTONE
  • Specification/standard Data: 81349-MIL-C-3098/39 GOVERNMENT SPECIFICATION
  • Test Data Document: 81349-MIL-C-3098/38 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.).
  • Drive Level Rating: 0.8 MILLIWATTS MINIMUM AND 1.2 MILLIWATTS MAXIMUM
  • Equivalent Resistance Value in Ohms: 40.0 MAXIMUM
  • Frequency Tolerance for Operating Temp in Percent: -0.002 TO 0.002 AND -0.004 TO 0.004
  • Operable Temp Range: -55.0 TO 80.0 CELSIUS DEGC
Applications
  • Applications requiring Glass Cover Holder construction
General Description

The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-583-0173, 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 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5955-00-583-0173
Primary Part NumberCR61/U43M33333
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
StatusCANCELLED
Mode of OscillationTHIRD OVERTONE AND FIFTH OVERTONE
Specification/standard Data81349-MIL-C-3098/39 GOVERNMENT SPECIFICATION
Test Data Document81349-MIL-C-3098/38 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.).
Drive Level Rating0.8 MILLIWATTS MINIMUM AND 1.2 MILLIWATTS MAXIMUM
Equivalent Resistance Value in Ohms40.0 MAXIMUM
Frequency Tolerance for Operating Temp in Percent-0.002 TO 0.002 AND -0.004 TO 0.004
Operable Temp Range-55.0 TO 80.0 CELSIUS DEGC
Overall Thickness0.183 INCHES MAXIMUM IN
Controlled Reference Temp85.0 CELSIUS DEGC
MaterialGLASS COVER HOLDER
Frequency Stability in Percent-0.0005 TO 0.0005
Operating Temp Range+80.0 TO 90.0 CELSIUS DEGC
Body Thickness0.150 INCHES MAXIMUM IN
Center to Center Distance Between Terminals0.184 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
Specified Frequency43.333333 MEGAHERTZ
Shunt Capacitance in Picofarads7.0 MAXIMUM
Frequency Tolerance at Reference Temp in Percent-0.008 TO 0.008
Terminal Diameter0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
Terminal Length0.5003 INCHES MINIMUM IN
Body Width0.402 INCHES MAXIMUM IN
Style DesignatorRECTANGULAR BODY, GULL WING
Circuit ResonanceSERIES RESONANCE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5306-00-011-9414119414 INTERCHANGEABLE
Bolt,square Neck
Chrysler Realty Company Llc Dba Daimler Chrysler
5955-00-051-4756 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-082-3964 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-226-8419 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-583-0111 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-583-0112 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-583-0113 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-583-0114 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-583-0165 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-583-0166 INTERCHANGEABLE
Crystal Unit,quartz
Cross-Reference Index
Part NumberManufacturer
CR61/U43M33333 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-3098/39 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-C-3098/39 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
290-4576-000 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
290-4576-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
119414 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
5306-00-011-9414INTERCHANGEABLE
BOLT,SQUARE NECK
119414
5955-00-051-4756INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-082-3964INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-226-8419INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-583-0111INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-583-0112INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-583-0113INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-583-0114INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-583-0165INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-583-0166INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-583-0167INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-583-0168INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ

Frequently Asked Questions

What is NSN 5955-00-583-0173?

NSN 5955-00-583-0173 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: cancelled.

What are the part numbers for NSN 5955-00-583-0173?

NSN 5955-00-583-0173 has 6 cross-referenced part numbers: CR61/U43M33333 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-3098/39 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-C-3098/39 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 290-4576-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 290-4576-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems) and 1 more.

What NSN replaces 5955-00-583-0173?

There are 12 known substitutes for 5955-00-583-0173: 5306-00-011-9414, 5955-00-051-4756, 5955-00-082-3964 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CR61/U43M33333?

Key specifications for CR61/U43M33333: Mode of Oscillation: THIRD OVERTONE AND FIFTH OVERTONE; Specification/standard Data: 81349-MIL-C-3098/39 GOVERNMENT SPECIFICATION; Test Data Document: 81349-MIL-C-3098/38 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.).; Drive Level Rating: 0.8 MILLIWATTS MINIMUM AND 1.2 MILLIWATTS MAXIMUM. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5955-00-583-0173 still in active supply?

NSN 5955-00-583-0173 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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