PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILC3098-26Crystal Unit,quartz

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5955-00-855-3744 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-00-855-3744 — this item is cataloged by the U.S. Government under National Stock Number 5955-00-855-3744. Primary manufacturer part number: MILC3098-26.
Features
  • Crystal Unit,quartz — FSC 5955
  • Controlled Reference Temp: 75.0 CELSIUS DEGC
  • Operating Temp Range: +70.0 TO 80.0 CELSIUS DEGC
  • Body Length: 0.775 INCHES MAXIMUM IN
  • Equivalent Resistance Value in Ohms: 6000.0 NOMINAL
  • Frequency Tolerance for Operating Temp in Percent: -0.002 TO 0.002
  • Style Designator: OVAL BODY, PIN TERMINALS
  • Test Data Document: 81349-MILC3098 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.).
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-855-3744, 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 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN5955-00-855-3744
Primary Part NumberMILC3098-26
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
Controlled Reference Temp75.0 CELSIUS DEGC
Operating Temp Range+70.0 TO 80.0 CELSIUS DEGC
Body Length0.775 INCHES MAXIMUM IN
Equivalent Resistance Value in Ohms6000.0 NOMINAL
Frequency Tolerance for Operating Temp in Percent-0.002 TO 0.002
Style DesignatorOVAL BODY, PIN TERMINALS
Test Data Document81349-MILC3098 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 Rating2.0 MILLIWATTS NOMINAL AND 1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM
Center to Center Distance Between Terminals0.486 INCHES NOMINAL IN
Terminal Length0.238 INCHES NOMINAL IN
Terminal Diameter0.050 INCHES NOMINAL IN
Specified Frequency250.000 KILOHERTZ
Frequency Tolerance at Reference Temp in Percent-0.002 TO 0.002
Frequency Stability in Percent-0.0005 TO 0.0005
Operable Temp Range-40.0 TO 70.0 CELSIUS DEGC
Body Width0.725 INCHES MAXIMUM IN
Body Thickness0.317 INCHES MAXIMUM IN
Load Capacitance in Picofarads20.0 NOMINAL AND 19.5 MINIMUM AND 20.5 MAXIMUM
Overall Thickness0.352 INCHES MAXIMUM IN
Circuit ResonanceANTIRESONANCE
Mode of OscillationFUNDAMENTAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5955-00-008-2636 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-848-0025 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-901-3746 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-905-7722 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-914-0073 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-914-3547 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-914-6462 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-914-6463 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-914-6464 INTERCHANGEABLE
Crystal Unit,quartz
5955-00-914-6467 INTERCHANGEABLE
Crystal Unit,quartz
Cross-Reference Index
Part NumberManufacturer
MILC3098-26 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-3098/26 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
CR-47A/U250.000KHZ Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
CR47/U250K0000 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5955-00-008-2636INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-848-0025INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-901-3746INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-905-7722INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-914-0073INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-914-3547INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-914-6462INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-914-6463INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-914-6464INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-914-6467INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-914-6468INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5955-00-914-6469INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ

Frequently Asked Questions

What is NSN 5955-00-855-3744?

NSN 5955-00-855-3744 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 5955-00-855-3744?

NSN 5955-00-855-3744 has 4 cross-referenced part numbers: MILC3098-26 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-3098/26 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), CR-47A/U250.000KHZ (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), CR47/U250K0000 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5955-00-855-3744?

There are 12 known substitutes for 5955-00-855-3744: 5955-00-008-2636, 5955-00-848-0025, 5955-00-901-3746 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILC3098-26?

Key specifications for MILC3098-26: Controlled Reference Temp: 75.0 CELSIUS DEGC; Operating Temp Range: +70.0 TO 80.0 CELSIUS DEGC; Body Length: 0.775 INCHES MAXIMUM IN; Overall Width: 0.757 INCHES MAXIMUM IN. 23 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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