PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

688750Generator,tachometer

Naval Sea Systems Command · NSN 6680-00-530-0659 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-530-0659 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-530-0659. Primary manufacturer part number: 688750.
Features
  • Generator,tachometer — FSC 6680
  • Shaft Diameter: UNABLE TO DECODE
  • Current Rating in Amps: UNABLE TO DECODE
  • Current Type: UNABLE TO DECODE
  • Calibration Speed in RPM: 3600.0
  • Shaft End Characteristic: UNABLE TO DECODE
  • Nominal Center to Center Distance Between Mounting Facilities Parallel to Length: 1.000 INCHES IN
  • Electrical Resistance: 280.0 OHMS
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Generator,tachometer, cataloged under National Stock Number 6680-00-530-0659, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-00-530-0659
Primary Part Number688750
Item NameGenerator,tachometer
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Shaft DiameterUNABLE TO DECODE
Current Rating in AmpsUNABLE TO DECODE
Current TypeUNABLE TO DECODE
Calibration Speed in RPM3600.0
Shaft End CharacteristicUNABLE TO DECODE
Nominal Center to Center Distance Between Mounting Facilities Parallel to Length1.000 INCHES IN
Electrical Resistance280.0 OHMS
Shaft Rotation DirectionUNABLE TO DECODE
Accuracy Range in Percent-1.0 TO 1.0
Calibration Voltage Output Type in Volts80.0 DC
Length of Shaft From HousingUNABLE TO DECODE
Rotor Speed Rating in RPM3600.0 SINGLE FULL LOAD
Mounting MethodFIXED BASE
Terminal Type and Quantity2 WIRE LEAD
Nominal Center to Center Distance Between Mounting Facilities Parallel to Width1.250 INCHES IN
Mounting Facility Type and Quantity4 THREADED HOLE(S)
Features ProvidedHORIZONTAL MOUNTING POSITION AND VERTICAL MOUNTING POSITION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2920-00-607-7241A3274 INTERCHANGEABLE
Drive,engine,electrical Starter
Purolator Products Co Div Motor Components, Llc
6680-00-698-2114SMC192248 INTERCHANGEABLE
Generator,tachometer
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5915-01-138-223313221E9137 INTERCHANGEABLE
Filter,radio Frequency Interfere
Cecom Lr Center
5342-01-194-988910510724 INTERCHANGEABLE
Clip
General Dynamics Land Systems Canadacorp
5365-01-621-8298937060 INTERCHANGEABLE
Spacer,plate
L-3 Communications Cincinnati Electronics Corporation
Cross-Reference Index
Part NumberManufacturer
CB326 Schulze Mfg., Inc. (USA)
326 Schulze Mfg., Inc. (USA)
937060 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
T9624548 General Electric Company (USA)
688750 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
688750 PRIMARY Naval Sea Systems Command (USA)
12Z13009-10 Naval Ordnance Standards (USA)
A2991 Schulze Mfg., Inc. (USA)
CB214 Schulze Mfg., Inc. (USA)
937060 Naval Sea Systems Command (USA)
Related Parts
2920-00-607-7241INTERCHANGEABLE
DRIVE,ENGINE,ELECTRICAL STARTER
A3274
6680-00-698-2114INTERCHANGEABLE
GENERATOR,TACHOMETER
SMC192248
5915-01-138-2233INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
13221E9137
5342-01-194-9889INTERCHANGEABLE
CLIP
10510724
5365-01-621-8298INTERCHANGEABLE
SPACER,PLATE
937060

Frequently Asked Questions

What is NSN 6680-00-530-0659?

NSN 6680-00-530-0659 is a Generator,tachometer, manufactured by Naval Sea Systems Command, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-530-0659?

NSN 6680-00-530-0659 has 10 cross-referenced part numbers: CB326 (Schulze Mfg., Inc.), 326 (Schulze Mfg., Inc.), 937060 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), T9624548 (General Electric Company), 688750 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier) and 5 more.

What NSN replaces 6680-00-530-0659?

There are 5 known substitutes for 6680-00-530-0659: 2920-00-607-7241, 6680-00-698-2114, 5915-01-138-2233 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 688750?

Key specifications for 688750: Shaft Diameter: UNABLE TO DECODE; Current Rating in Amps: UNABLE TO DECODE; Current Type: UNABLE TO DECODE; Calibration Speed in RPM: 3600.0. 20 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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