PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56-3-2Crystal Unit,quartz

Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled · NSN 5955-01-302-9000 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-01-302-9000 — this item is cataloged by the U.S. Government under National Stock Number 5955-01-302-9000. Primary manufacturer part number: 56-3-2.
Features
  • Crystal Unit,quartz — FSC 5955
  • Terminal Diameter: 0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
  • Circuit Resonance: SERIES RESONANCE
  • Style Designator: OVAL BODY, WIRE LEADS W/HOLD DOWN WIRE
  • Specified Frequency: 3.000 MEGAHERTZ AND 8.000 MEGAHERTZ
  • Body Thickness: 0.136 INCHES MAXIMUM IN
  • Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC
  • Center to Center Distance Between Terminals: 0.187 INCHES MINIMUM AND 0.200 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 5955-01-302-9000, 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 13 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5955-01-302-9000
Primary Part Number56-3-2
Item NameCrystal Unit,quartz
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerMicrosemi Corp. - High Performance Timing Dba Vectron International- Cancelled
StatusACTIVE
Terminal Diameter0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
Circuit ResonanceSERIES RESONANCE
Style DesignatorOVAL BODY, WIRE LEADS W/HOLD DOWN WIRE
Specified Frequency3.000 MEGAHERTZ AND 8.000 MEGAHERTZ
Body Thickness0.136 INCHES MAXIMUM IN
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Center to Center Distance Between Terminals0.187 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
Body Width0.391 INCHES MAXIMUM IN
Equivalent Resistance Value in Ohms125.0 MAXIMUM
Terminal Length1.500 INCHES MINIMUM IN
Overall Thickness0.186 INCHES MAXIMUM IN
Mode of OscillationFUNDAMENTAL
Shunt Capacitance in Picofarads5.0 MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-198-2885156 INTERCHANGEABLE
Bearing,ball,annular
New Hampshire Ball Bearings Inc Div Hitech Division
5815-00-412-5051115700 INTERCHANGEABLE
Holder,copy
Lucent Technologies Inc Corporate Headquarters
5935-00-617-20795632 INTERCHANGEABLE
Connector,receptacle,electrical
Souriau Usa, Inc. Dba Souriau Usa Inc
5960-00-814-2139 INTERCHANGEABLE
Electron Tube
5940-00-902-6231GTX21-21 INTERCHANGEABLE
Splice,conductor
Dossert Corp
5935-01-142-3312 INTERCHANGEABLE
Connector,receptacle,electrical
4810-01-272-5542 INTERCHANGEABLE
Seat,valve
4810-01-272-6672A3350192001 INTERCHANGEABLE
Valve,solenoid
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-272-675610188A0F5 INTERCHANGEABLE
Disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-272-6757 INTERCHANGEABLE
Disk,valve
Cross-Reference Index
Part NumberManufacturer
56-3-2 PRIMARY Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA)
C19452-2 PRIMARY Cts Reeves Frequency Products (USA)
972389-2 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
3110-00-198-2885INTERCHANGEABLE
BEARING,BALL,ANNULAR
156
5815-00-412-5051INTERCHANGEABLE
HOLDER,COPY
115700
5935-00-617-2079INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5632
5960-00-814-2139INTERCHANGEABLE
ELECTRON TUBE
5940-00-902-6231INTERCHANGEABLE
SPLICE,CONDUCTOR
GTX21-21
5935-01-142-3312INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
4810-01-272-5542INTERCHANGEABLE
SEAT,VALVE
4810-01-272-6672INTERCHANGEABLE
VALVE,SOLENOID
A3350192001
4820-01-272-6756INTERCHANGEABLE
DISK,VALVE
10188A0F5
4820-01-272-6757INTERCHANGEABLE
DISK,VALVE
4820-01-273-1203INTERCHANGEABLE
DISK,VALVE
10139A0E4
5935-01-282-6903INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL

Frequently Asked Questions

What is NSN 5955-01-302-9000?

NSN 5955-01-302-9000 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 5955-01-302-9000?

NSN 5955-01-302-9000 has 3 cross-referenced part numbers: 56-3-2 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), C19452-2 (Cts Reeves Frequency Products), 972389-2 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 5955-01-302-9000?

There are 12 known substitutes for 5955-01-302-9000: 3110-00-198-2885, 5815-00-412-5051, 5935-00-617-2079 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 56-3-2?

Key specifications for 56-3-2: Terminal Diameter: 0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN; Circuit Resonance: SERIES RESONANCE; Style Designator: OVAL BODY, WIRE LEADS W/HOLD DOWN WIRE; Specified Frequency: 3.000 MEGAHERTZ AND 8.000 MEGAHERTZ. 16 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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