Product Details | TACHOMETER GENERATOR

6680-00-490-9929 A generator consisting of a series of mounted coils surrounding a rotating permanent magnet or a permanent magnet and a rotating armature. The voltage output is directly proportional to the speed of rotation of the shaft. When used with an associated indicator, transmits such data as revolutions per minute, speed of travel, and the like. May also be used in servomechanism loops as a system stabilizer. Excludes rotary inverters, rotary converters, motor generators, dynamotors, generator sets, synchros, frequency or phase changers, and engine accessory generators.

Part Alternates: 202, 20201202, 2020-120-2, 6680-00-490-9929, 00-490-9929, 6680004909929, 004909929

Instruments and Laboratory Equipment | Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments

Supply Group (FSG) NSN Assign. NIIN
66 22 MAR 1972 00-490-9929

Demand History | NSN 6680-00-490-9929

Part Number Request Date QTY Origin
202 2017-07-192 1 us

Cross Reference | NSN 6680-00-490-9929

Part Number Cage Code Manufacturer
202 39739 SCOTT FETZER COMPANY, THE DBA MERIAM PROCESS TECHNOLOGIES
2020-120-2 39739 SCOTT FETZER COMPANY, THE DBA MERIAM PROCESS TECHNOLOGIES

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Technical Data | NSN 6680-00-490-9929

Characteristic Specifications
OVERALL LENGTH 8.125 INCHES
OVERALL WIDTH 4.750 INCHES
OVERALL HEIGHT 6.250 INCHES
LENGTH OF SHAFT FROM HOUSING 1.250 INCHES SINGLE END
MOUNTING FACILITY TYPE AND QUANTITY 4 UNTHREADED HOLE
NOMINAL CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH 3.125 INCHES
NOMINAL CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH 4.000 INCHES
EXCITOR TYPE SELF-EXCITED
TERMINAL TYPE AND QUANTITY 3 WIRE LEAD
SHAFT ROTATION DIRECTION CLOCKWISE SINGLE END
ROTOR SPEED RATING IN RPM 3500.0 SINGLE FULL LOAD
SHAFT END CHARACTERISTIC A1 SINGLE STYLE SINGLE END
SHAFT DIAMETER 0.5000 INCHES NOMINAL SINGLE END
FEATURES PROVIDED HORIZONTAL MOUNTING POSITION AND VERTICAL MOUNTING POSITION
MANUFACTURERS CODE 39739
DESIGN CONTROL REFERENCE 2020-120-2

Restrictions/Controls & Freight Information | NSN 6680-00-490-9929

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 133300 MACHINERY/MACHINES NOI
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 652 unknown
Originating Activity Code SE San Antonio Air Logistics Center
Kelly AFB, TX 78241-5000
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity H Signal Corps supplies and equipment, including radio equipment and supplies, communications equipment and supplies, electrical equipment and supplies, etc.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 6680-00-490-9929

Category Code Description
Budget Code9 General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Materiel Management Aggregation CodeKUTG:NON-AUTOMATIC AVIONICS TEST EQUIPMENT
Price ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
  • The price has not been analyzed or reviewed for accuracy.
  • ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each