PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6743Crystal Unit,quartz

Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled · NSN 5955-01-245-4697 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-01-245-4697 — this item is cataloged by the U.S. Government under National Stock Number 5955-01-245-4697. Primary manufacturer part number: 6743.
Features
  • Crystal Unit,quartz — FSC 5955
  • Style Designator: OVAL BODY, PIN TERMINALS
  • Drive Level Rating: 10.0 MICROWATTS MAXIMUM
  • Terminal Diameter: 0.030 INCHES NOMINAL IN
  • Material: GLASS COVER HOLDER
  • Center to Center Distance Between Terminals: 0.486 INCHES NOMINAL IN
  • Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005 AND -0.0010 TO 0.0010
  • Equivalent Resistance Value in Ohms: 25000.0 MINIMUM AND 38000.0 MAXIMUM
Applications
  • Applications requiring Glass Cover Holder construction
General Description

The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-245-4697, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5955-01-245-4697
Primary Part Number6743
Item NameCrystal Unit,quartz
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerMicrosemi Corp. - High Performance Timing Dba Vectron International- Cancelled
StatusACTIVE
Style DesignatorOVAL BODY, PIN TERMINALS
Drive Level Rating10.0 MICROWATTS MAXIMUM
Terminal Diameter0.030 INCHES NOMINAL IN
MaterialGLASS COVER HOLDER
Center to Center Distance Between Terminals0.486 INCHES NOMINAL IN
Frequency Tolerance for Operating Temp in Percent-0.005 TO 0.005 AND -0.0010 TO 0.0010
Equivalent Resistance Value in Ohms25000.0 MINIMUM AND 38000.0 MAXIMUM
Circuit ResonanceSERIES RESONANCE
Terminal Length1.500 INCHES NOMINAL IN
Overall Thickness0.352 INCHES MAXIMUM IN
Body Width0.725 INCHES MAXIMUM IN
Shunt Capacitance in Picofarads15.0 NOMINAL
Specified Frequency3212.000 HERTZ
Body Thickness0.317 INCHES MAXIMUM IN
Mode of OscillationFUNDAMENTAL
Operating Temp Range-0.1 TO 50.0 CELSIUS DEGC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5815-00-126-41946743 INTERCHANGEABLE
Lever
Telemechanics Inc
1660-00-332-54866743 INTERCHANGEABLE
Plate,baffle
Avox Systems Inc Dba Avox Systems Inc
3825-00-382-9001 INTERCHANGEABLE
Distributor,water,tank Type
5998-00-488-0739 INTERCHANGEABLE
Circuit Card Assembly
5840-00-674-0469 INTERCHANGEABLE
Tuner
5985-00-822-8671674-3 INTERCHANGEABLE
Coupler,directional
Waveline Inc
5950-00-833-9448712099-111 INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Div Rmd Strategic
5310-00-899-6169940-219-001-108 INTERCHANGEABLE
Washer,lock
Roanwell, Llc
5905-01-020-9326752-6601 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Servo Instrument Corporation
3530-01-176-92606553 INTERCHANGEABLE
Needle,sewing Machine
Sears, Roebuck and Co. Dba Sears Div Sears Commercial
Cross-Reference Index
Part NumberManufacturer
6743 PRIMARY Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA)
77C706673P013 Lockheed Martin Corporation Div Rms (USA)
Related Parts
5815-00-126-4194INTERCHANGEABLE
LEVER
6743
1660-00-332-5486INTERCHANGEABLE
PLATE,BAFFLE
6743
3825-00-382-9001INTERCHANGEABLE
DISTRIBUTOR,WATER,TANK TYPE
5998-00-488-0739INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5840-00-674-0469INTERCHANGEABLE
TUNER
5985-00-822-8671INTERCHANGEABLE
COUPLER,DIRECTIONAL
674-3
5950-00-833-9448INTERCHANGEABLE
COIL,RADIO FREQUENCY
712099-111
5310-00-899-6169INTERCHANGEABLE
WASHER,LOCK
940-219-001-108
5905-01-020-9326INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
752-6601
3530-01-176-9260INTERCHANGEABLE
NEEDLE,SEWING MACHINE
6553

Frequently Asked Questions

What is NSN 5955-01-245-4697?

NSN 5955-01-245-4697 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 5955-01-245-4697?

NSN 5955-01-245-4697 has 2 cross-referenced part numbers: 6743 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), 77C706673P013 (Lockheed Martin Corporation Div Rms).

What NSN replaces 5955-01-245-4697?

There are 10 known substitutes for 5955-01-245-4697: 5815-00-126-4194, 1660-00-332-5486, 3825-00-382-9001 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6743?

Key specifications for 6743: Style Designator: OVAL BODY, PIN TERMINALS; Drive Level Rating: 10.0 MICROWATTS MAXIMUM; Overall Length: 1.775 INCHES MAXIMUM IN; Terminal Diameter: 0.030 INCHES NOMINAL IN. 18 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