PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56-2-1Crystal Unit,quartz

Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled · NSN 5955-01-125-0632 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-01-125-0632 — this item is cataloged by the U.S. Government under National Stock Number 5955-01-125-0632. Primary manufacturer part number: 56-2-1.
Features
  • Crystal Unit,quartz — FSC 5955
  • Load Capacitance in Picofarads: 80.0 NOMINAL
  • Center to Center Distance Between Terminals: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
  • Equivalent Resistance Value in Ohms: 30.0 MAXIMUM
  • Style Designator: HAT TYPE, 3 WIRE LEADS
  • Frequency Tolerance for Operating Temp in Percent: -0.003 TO 0.003
  • Diameter: 0.335 INCHES MAXIMUM IN
  • Overall Diameter: 0.410 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-125-0632, 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 Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5955-01-125-0632
Primary Part Number56-2-1
Item NameCrystal Unit,quartz
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerMicrosemi Corp. - High Performance Timing Dba Vectron International- Cancelled
StatusACTIVE
Load Capacitance in Picofarads80.0 NOMINAL
Center to Center Distance Between Terminals0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
Equivalent Resistance Value in Ohms30.0 MAXIMUM
Style DesignatorHAT TYPE, 3 WIRE LEADS
Frequency Tolerance for Operating Temp in Percent-0.003 TO 0.003
Diameter0.335 INCHES MAXIMUM IN
Overall Diameter0.410 INCHES MAXIMUM IN
Shunt Capacitance in Picofarads5.0 NOMINAL
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Circuit ResonanceANTIRESONANCE
Mode of OscillationFUNDAMENTAL
Terminal Length0.500 INCHES MINIMUM IN
Terminal Diameter0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
Specified Frequency12.000 MEGAHERTZ
Drive Level Rating2.0 MILLIWATTS MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6110-00-104-43415621 INTERCHANGEABLE
Protector,thermal-Overload,elect
Hdt Expeditionary Systems Inc
5905-00-141-1116 INTERCHANGEABLE
Resistor,fixed,composition
5910-00-332-0777SM-A-935135-1 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4720-00-541-07475621 INTERCHANGEABLE
Hose,air Duct
Flexco, Inc
5998-00-545-4983 INTERCHANGEABLE
Extender Card,electronic Test
5950-00-645-77615621 INTERCHANGEABLE
Transformer,audio Frequency
Precision Electronics, Inc
5975-00-661-1007 INTERCHANGEABLE
Box Connector,electrical
5895-00-784-3797712699-001 INTERCHANGEABLE
Core
Raytheon Company Dba Raytheon
4710-01-316-238356-21 INTERCHANGEABLE
Tube Assembly,metal
Chicago Faucet Co the
7025-01-523-12295621 INTERCHANGEABLE
Interface Unit,automatic Data Pr
Stingray56 Inc.
Cross-Reference Index
Part NumberManufacturer
972368-1 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
56-2-1 PRIMARY Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA)
C17422 PRIMARY Cts Reeves Frequency Products (USA)
Related Parts
6110-00-104-4341INTERCHANGEABLE
PROTECTOR,THERMAL-OVERLOAD,ELECT
5621
5905-00-141-1116INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5910-00-332-0777INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
SM-A-935135-1
4720-00-541-0747INTERCHANGEABLE
HOSE,AIR DUCT
5621
5998-00-545-4983INTERCHANGEABLE
EXTENDER CARD,ELECTRONIC TEST
5950-00-645-7761INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5621
5975-00-661-1007INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5895-00-784-3797INTERCHANGEABLE
CORE
712699-001
4710-01-316-2383INTERCHANGEABLE
TUBE ASSEMBLY,METAL
56-21
7025-01-523-1229INTERCHANGEABLE
INTERFACE UNIT,AUTOMATIC DATA PR
5621

Frequently Asked Questions

What is NSN 5955-01-125-0632?

NSN 5955-01-125-0632 is a Crystal Unit,quartz, manufactured by Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled, classified under FSC 5955 (No Item Name Available). Status: active.

What are the part numbers for NSN 5955-01-125-0632?

NSN 5955-01-125-0632 has 3 cross-referenced part numbers: 972368-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 56-2-1 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), C17422 (Cts Reeves Frequency Products).

What NSN replaces 5955-01-125-0632?

There are 10 known substitutes for 5955-01-125-0632: 6110-00-104-4341, 5905-00-141-1116, 5910-00-332-0777 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 56-2-1?

Key specifications for 56-2-1: Load Capacitance in Picofarads: 80.0 NOMINAL; Center to Center Distance Between Terminals: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN; Equivalent Resistance Value in Ohms: 30.0 MAXIMUM; Style Designator: HAT TYPE, 3 WIRE LEADS. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com