Product Details | BELT-CHAIN TENSION ADJUSTING DEVICE

2990-01-643-3604 A device designed to facilitate the adjustment of drive belt or roller chain tension on belt or chain driven accessories through a hydraulic or spring actuated mechanism. It consists of an adjusting arm, idler pulley or sprocket wheel and other structural parts.20529200048Engine Electrical System Components, Nonaircraft29300045Engine Cooling System Components, Nonaircraft29500032Turbosupercharger and Components29900045Miscellaneous Engine Accessories, Nonaircraft30400042Miscellaneous Power Transmission Equipment

Part Alternates: 31316674 , 2990-01-643-3604, 01-643-3604, 2990016433604, 016433604

Engine Accessories | Miscellaneous Engine Accessories, Nonaircraft

Supply Group (FSG) NSN Assign. NIIN
29 2015090 01-643-3604

Demand History | NSN 2990-01-643-3604

Part Number Request Date QTY Origin
22707408 2022-01-10 2 DIBBS
31316674 2021-06-171 2 DIBBS

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Technical Data | NSN 2990-01-643-3604

Characteristic Specifications
SPECIAL FEATURES D3-110I 110HP
III END ITEM IDENTIFICATION ENGINE,DIESEL
III PART NAME ASSIGNED BY CONTROLLING AGENCY ADJUSTING DEVICE,BELT TENSIONER

Restrictions/Controls & Freight Information | NSN 2990-01-643-3604

Category Code Description
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.
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
No Freight Information

Management | NSN 2990-01-643-3604

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
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