Product Details | TRANSMISSION SYNCHRONIZER

2520-00-737-4999 A device used in manual automotive transmissions, designed to equalize the speed of the mating parts before they engage. Common types such as block type, disk and plate type, plain type or pin type use friction to synchronize the mating parts. the main function is to help in engaging gears by synchronizing the speeds of the gear and the shaft before the connection is made.

Part Alternates: 1AT90A-2 1/2, 1AT90A-21/2, 1AT90A212, 640391, 7374999, 2520-00-737-4999, 00-737-4999, 2520007374999, 007374999

Vehicular Equipment Components | Vehicular Power Transmission Components

Supply Group (FSG) NSN Assign. NIIN
25 01 JAN 1963 00-737-4999

Demand History | NSN 2520-00-737-4999

Part Number Request Date QTY Origin
2520-00-737-4999 2012-09-266 1 US

Cross Reference | NSN 2520-00-737-4999

Part Number Cage Code Manufacturer
1AT90A-2 1/2 4G904 LEWIS GEAR CO INC
1AT90A-2 1/2 79410 LIBERTY VENTURES INTI LLC
1AT90A-21/2 31204 PERFECTION CLUTCH
640391 34623 AM GENERAL, LLC
7374999 19207 U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

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Technical Data | NSN 2520-00-737-4999

Characteristic Specifications
GENERAL CHARACTERISTICS ITEM DESCRIPTION CONSISTS OF STEEL CLUTCH HUB,CLUTCH SLEEVE,3 INSERTS,2 RETAINING 4INGS AND 2 BRASS BLOCKING RINGS;1.516 IN. O/A LG;3.356 IN. LARGEST OD;INCLUDES STRAIGHT SPLINED BORE,6 TEETH,1.356 IN. MAJOR DIA,1.156 IN. MINOR DIA

Restrictions/Controls & Freight Information | NSN 2520-00-737-4999

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodePThere is no information in the HMIS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product
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 019940 AUTO TRANSMISSIONS R CLUTCHES
Less than car load rating
Less than truck load rating M 85.0
Water commodity Code 586 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
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 2520-00-737-4999

Category Code Description
Materiel Category and Inventory ManagerJ Ground Forces Support Materiel (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code0 Medical Materiel
Weapons Systems/End Item or Homogeneous Group00DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
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
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
Purchasing QTY
UOM
1
EA : Each