PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

925128-37Crystal Unit,quartz

Raytheon Company Dba Raytheon · NSN 5955-00-004-2029 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-00-004-2029 — this item is cataloged by the U.S. Government under National Stock Number 5955-00-004-2029. Primary manufacturer part number: 925128-37.
Features
  • Crystal Unit,quartz — FSC 5955
  • Shunt Capacitance in Picofarads: 3.6 MINIMUM AND 5.4 MAXIMUM
  • Specified Frequency: 105.251145 MEGAHERTZ
  • Drive Level Rating: 1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM
  • Frequency Tolerance for Operating Temp in Percent: -0.0015 TO 0.0015
  • 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.).
  • Equivalent Resistance Value in Ohms: 40.0 NOMINAL
  • Criticality Code Justification: FEAT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-004-2029, 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 Raytheon Company Dba Raytheon. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5955-00-004-2029
Primary Part Number925128-37
Item NameCrystal Unit,quartz
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Shunt Capacitance in Picofarads3.6 MINIMUM AND 5.4 MAXIMUM
Specified Frequency105.251145 MEGAHERTZ
Drive Level Rating1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM
Frequency Tolerance for Operating Temp in Percent-0.0015 TO 0.0015
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.).
Equivalent Resistance Value in Ohms40.0 NOMINAL
Criticality Code JustificationFEAT
Overall Diameter0.340 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
Operating Temp Range-24.0 TO 54.0 CELSIUS DEGC
Center to Center Distance Between Terminals0.200 INCHES NOMINAL IN
Terminal Diameter0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
Circuit ResonanceSERIES RESONANCE
Style DesignatorHAT TYPE, 3 WIRE LEADS
Mode of OscillationFIFTH OVERTONE
Diameter0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
Terminal Length0.980 INCHES MINIMUM AND 1.105 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5331-00-941-334499-4037 INTERCHANGEABLE
O-Ring
Hamilton Sundstrand Corporation
6240-00-944-1264194 INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Lighting Products Group Hillsboro Miniature Lamp Plant
Cross-Reference Index
Part NumberManufacturer
K309-37 Bliley Technologies Inc (USA)
925128-37 PRIMARY Raytheon Company Dba Raytheon (USA)
99-40-37 Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA)
925128-37 Wenzel International Inc Div Croven Crystals (CAN)
Related Parts
5331-00-941-3344INTERCHANGEABLE
O-RING
99-4037
6240-00-944-1264INTERCHANGEABLE
LAMP,INCANDESCENT
194

Frequently Asked Questions

What is NSN 5955-00-004-2029?

NSN 5955-00-004-2029 is a Crystal Unit,quartz, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5955 (No Item Name Available). Status: active.

What are the part numbers for NSN 5955-00-004-2029?

NSN 5955-00-004-2029 has 4 cross-referenced part numbers: K309-37 (Bliley Technologies Inc), 925128-37 (Raytheon Company Dba Raytheon), 99-40-37 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), 925128-37 (Wenzel International Inc Div Croven Crystals).

What NSN replaces 5955-00-004-2029?

There are 2 known substitutes for 5955-00-004-2029: 5331-00-941-3344, 6240-00-944-1264. Verify interchangeability with system specifications before substitution.

What are the specifications of 925128-37?

Key specifications for 925128-37: Shunt Capacitance in Picofarads: 3.6 MINIMUM AND 5.4 MAXIMUM; Specified Frequency: 105.251145 MEGAHERTZ; Drive Level Rating: 1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM; Frequency Tolerance for Operating Temp in Percent: -0.0015 TO 0.0015. 19 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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