Product Details | ELECTRONIC TACHOMETER

6680-01-539-0491 A tachometer using solid state and/or vacuum tube circuitry.

Part Alternates: R8930, 6680-01-539-0491, 01-539-0491, 6680015390491, 015390491

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

Supply Group (FSG) NSN Assign. NIIN
66 10 APR 2006 01-539-0491

Cross Reference | NSN 6680-01-539-0491

Part Number Cage Code Manufacturer
R8930 55242 ISOMETRICS, INC.

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Technical Data | NSN 6680-01-539-0491

Characteristic Specifications
III END ITEM IDENTIFICATION 2320-01-517-4333
III PART NAME ASSIGNED BY CONTROLLING AGENCY TACH SENSOR, FLYWHEEL ENG

Restrictions/Controls & Freight Information | NSN 6680-01-539-0491

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
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 136740 METERS ELEC/PARTS
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 652 unknown
Originating Activity Code PA Marine Corps Logistics Base
Albany, GA 31704-1128
Air Dimension Code Z Shipment is not a consolidation, but does exceed 72 inches in one or more dimensions.
Air Commodity 2 Arms/Weapons (all types including Inert Component Parts). When a 2 is indicated in the first position, then the special handling code must be determined from table 85 , part 1.
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 6680-01-539-0491

Category Code Description
Stores Account Code1Marine Corps Stock Fund Account Item.
Combat Essentiality Code5Critical Repair Part to a Combat Essential End Item. Those parts or components whose failure in a combat essential end item will render the end item inoperative or reduce its effectiveness below the minimum acceptable level of efficiency.
Materiel Management Code3Engineer Materiel19; 20; 22; 24; 30; 32; 34 except 3470; 36; 37; 38; 41; 42 except 4210; 43; 45; 46; 47; 48; 4930; 54 except 5445; 56; 62; 66 except 6625, 6650, 6660, 6665; 67; 68
Echelon Management Code9ICP Weapon system-oriented consumable items assigned to Marine Corps for integrated materiel management and which are managed by the ICP on a system-wide basis.
Source of SupplyLB4Navistar International Corporation Truck Ohio Plan.
6125 Urbana Rd.
PO Box 600
Springfield, OH 45501-0600
AgencyDMU.S. Marine Corps
Service OrganizationMU.S. Marine Corps
ReparabilityZNonreparable item. When unserviceable, condemn and dispose at the level indicated by the first digit of the maintenance code.
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each