PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SB740A2Generator,tachometer

Servo-Tek Products Company, Inc. Dba Servo-Tek Products · NSN 6680-00-856-7303 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-856-7303 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-856-7303. Primary manufacturer part number: SB740A2.
Features
  • Generator,tachometer — FSC 6680
  • Terminal Type and Quantity: 2 BINDING POST
  • Calibration Speed in RPM: 1000.0
  • Length of Shaft From Housing: UNABLE TO DECODE
  • Rotor Speed Rating in RPM: 12000.0 SINGLE FULL LOAD
  • Current Rating in Amps: UNABLE TO DECODE
  • Electrical Resistance: 325.0 OHMS
  • Current Type: UNABLE TO DECODE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Generator,tachometer, cataloged under National Stock Number 6680-00-856-7303, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Servo-Tek Products Company, Inc. Dba Servo-Tek Products. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6680-00-856-7303
Primary Part NumberSB740A2
Item NameGenerator,tachometer
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerServo-Tek Products Company, Inc. Dba Servo-Tek Products
StatusCANCELLED
Terminal Type and Quantity2 BINDING POST
Calibration Speed in RPM1000.0
Length of Shaft From HousingUNABLE TO DECODE
Rotor Speed Rating in RPM12000.0 SINGLE FULL LOAD
Current Rating in AmpsUNABLE TO DECODE
Electrical Resistance325.0 OHMS
Current TypeUNABLE TO DECODE
Shaft DiameterUNABLE TO DECODE
Accuracy Range in Percent-0.0025 TO 0.0025
Shaft End CharacteristicUNABLE TO DECODE
Nominal Center to Center Distance Between Mounting Facilities Parallel to Height0.937 INCHES IN
Nominal Center to Center Distance Between Mounting Facilities Parallel to Width0.937 INCHES IN
Features ProvidedHORIZONTAL MOUNTING POSITION AND VERTICAL MOUNTING POSITION
Mounting MethodPAD
Calibration Voltage Output Type in Volts7.0 DC
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5962-01-153-2685841013 INTERCHANGEABLE
Microcircuit,memory
Drs Signal Solutions, Inc.
5930-01-298-2208511 003 INTERCHANGEABLE
Switch,toggle
Cvg Sprague Devices, Llc Dba Cvg Sprague Devices, Llc
5998-01-535-9295511-003 INTERCHANGEABLE
Circuit Card Assembly
Clarke Hess Communication Research Corp
Cross-Reference Index
Part NumberManufacturer
SB740A2 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
841013 L3 Aviation Products, Inc. Dba L3 Technologies (USA)
511-003 Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc (USA)
724339000200 Leonardo Spa Divisione Sistemi Di Difesa (ITA)
B185-20800-903 General Dynamics Information Systems Inc. Dba General Dynamics Advanced Information Systems (USA)
511 Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc (USA)
SB740A2 PRIMARY Servo-Tek Products Company, Inc. Dba Servo-Tek Products (USA)
Related Parts
5962-01-153-2685INTERCHANGEABLE
MICROCIRCUIT,MEMORY
841013
5930-01-298-2208INTERCHANGEABLE
SWITCH,TOGGLE
511 003
5998-01-535-9295INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
511-003

Frequently Asked Questions

What is NSN 6680-00-856-7303?

NSN 6680-00-856-7303 is a Generator,tachometer, manufactured by Servo-Tek Products Company, Inc. Dba Servo-Tek Products, classified under FSC 6680 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6680-00-856-7303?

NSN 6680-00-856-7303 has 7 cross-referenced part numbers: SB740A2 (Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems), 841013 (L3 Aviation Products, Inc. Dba L3 Technologies), 511-003 (Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc), 724339000200 (Leonardo Spa Divisione Sistemi Di Difesa), B185-20800-903 (General Dynamics Information Systems Inc. Dba General Dynamics Advanced Information Systems) and 2 more.

What NSN replaces 6680-00-856-7303?

There are 3 known substitutes for 6680-00-856-7303: 5962-01-153-2685, 5930-01-298-2208, 5998-01-535-9295. Verify interchangeability with system specifications before substitution.

What are the specifications of SB740A2?

Key specifications for SB740A2: Terminal Type and Quantity: 2 BINDING POST; Overall Height: 1.188 INCHES IN; Calibration Speed in RPM: 1000.0; Length of Shaft From Housing: UNABLE TO DECODE. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6680-00-856-7303 still in active supply?

NSN 6680-00-856-7303 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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