PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SB740B1Generator,tachometer

Servo-Tek Products Company, Inc. Dba Servo-Tek Products · NSN 6680-00-670-5303 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-670-5303 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-670-5303. Primary manufacturer part number: SB740B1.
Features
  • Generator,tachometer — FSC 6680
  • Features Provided: HORIZONTAL MOUNTING POSITION AND VERTICAL MOUNTING POSITION
  • Calibration Speed in RPM: 1000.0
  • Rotor Speed Rating in RPM: 100.0 LOW FULL LOAD
  • Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S)
  • Electrical Resistance: 880.0 OHMS
  • Shaft End Characteristic: UNABLE TO DECODE
  • Nominal Center to Center Distance Between Mounting Facilities Parallel to Width: 0.937 INCHES IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Generator,tachometer, cataloged under National Stock Number 6680-00-670-5303, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6680-00-670-5303
Primary Part NumberSB740B1
Item NameGenerator,tachometer
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerServo-Tek Products Company, Inc. Dba Servo-Tek Products
StatusCANCELLED
Features ProvidedHORIZONTAL MOUNTING POSITION AND VERTICAL MOUNTING POSITION
Calibration Speed in RPM1000.0
Rotor Speed Rating in RPM100.0 LOW FULL LOAD
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Electrical Resistance880.0 OHMS
Shaft End CharacteristicUNABLE TO DECODE
Nominal Center to Center Distance Between Mounting Facilities Parallel to Width0.937 INCHES IN
Shaft DiameterUNABLE TO DECODE
Accuracy Range in Percent-3.0 TO 3.0
Mounting MethodPAD
Calibration Voltage Output Type in Volts20.8 DC
Length of Shaft From HousingUNABLE TO DECODE
Nominal Center to Center Distance Between Mounting Facilities Parallel to Height0.937 INCHES IN
Terminal Type and Quantity2 SOLDER LUG
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5895-00-339-1288231213 INTERCHANGEABLE
Cover,electronic Communication E
L3harris Cincinnati Electronics Corporation
5935-00-402-12611303034G001-000 INTERCHANGEABLE
Connector,plug,electrical
Delta Electronics Manufacturing Corp Div Delta Electronics Mfg. Corp.
5977-01-028-036497031 INTERCHANGEABLE
Holder,electrical Contact Brush
Electro-Tec Corp Dba Moog Inc., Components Group
5999-01-460-1090 INTERCHANGEABLE
Contact Assembly,electrical
Cross-Reference Index
Part NumberManufacturer
97031 Edo (USA)
1877311-3 Northrop Grumman Systems Corporation (USA)
SB740B1 PRIMARY Servo-Tek Products Company, Inc. Dba Servo-Tek Products (USA)
PC415002-1 Leonardo Mw Ltd (GBR)
PC415002-1 G E C Marconi Communications Ltd (GBR)
1877311-3 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
Related Parts
5895-00-339-1288INTERCHANGEABLE
COVER,ELECTRONIC COMMUNICATION E
231213
5935-00-402-1261INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
1303034G001-000
5977-01-028-0364INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
97031
5999-01-460-1090INTERCHANGEABLE
CONTACT ASSEMBLY,ELECTRICAL

Frequently Asked Questions

What is NSN 6680-00-670-5303?

NSN 6680-00-670-5303 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 6680-00-670-5303?

NSN 6680-00-670-5303 has 6 cross-referenced part numbers: 97031 (Edo), 1877311-3 (Northrop Grumman Systems Corporation), SB740B1 (Servo-Tek Products Company, Inc. Dba Servo-Tek Products), PC415002-1 (Leonardo Mw Ltd), PC415002-1 (G E C Marconi Communications Ltd) and 1 more.

What NSN replaces 6680-00-670-5303?

There are 4 known substitutes for 6680-00-670-5303: 5895-00-339-1288, 5935-00-402-1261, 5977-01-028-0364 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SB740B1?

Key specifications for SB740B1: Features Provided: HORIZONTAL MOUNTING POSITION AND VERTICAL MOUNTING POSITION; Calibration Speed in RPM: 1000.0; Overall Length: 3.239 INCHES IN; Overall Height: 1.187 INCHES IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6680-00-670-5303 still in active supply?

NSN 6680-00-670-5303 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.
PartsTable Design LLC · partstable.com