Product Details | CLUTCH DISK

2520-00-939-6605 A solid circular disk of wire-woven lining material or ceramic and metal substance and the like, molded to one or both sides and fastened directly or indirectly to the center spline or hub, which receives and transmits motion or power by engagement with the pressure plate assembly and the flywheel or the like. Includes dry or wet type disk, and may include damper springs. This item is designed to be used on tanks, automobiles, construction equipment, and the like in conjunction with a CLUTCH ASSEMBLY, FRICTION.

Part Alternates: PP981, 217162, 232394, 2520-00-939-6605, 00-939-6605, 2520009396605, 009396605

Vehicular Equipment Components | Vehicular Power Transmission Components

Supply Group (FSG) NSN Assign. NIIN
25 30 NOV 1965 00-939-6605

Demand History | NSN 2520-00-939-6605

Part Number Request Date QTY Origin
217162 2025-11-329 2 KR
217162 2025-11-322 2 KR
217162 2025-11-321 2 KR
2520-00-939-6605 2018-05-134 399 KR

Cross Reference | NSN 2520-00-939-6605

Part Number Cage Code Manufacturer
217162 12603 CLARK EQUIPMENT CO
232394 12603 CLARK EQUIPMENT CO
232394 83829 E. C. STYBERG ENGINEERING COMPANY DIV E.C. STYBERG ENGINEERING CO. INC
PP981 79370 THE S K WELLMAN CORP DBA WELLMAN FRICTION PRODUCTS

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Technical Data | NSN 2520-00-939-6605

Characteristic Specifications
DISK MATERIAL STEEL
DESIGN TYPE DRY
FLEXIBILITY RIGID
DISK TYPE EXTERNAL LUG
TEETH QUANTITY PER DISK 14
SPECIAL FEATURES ALTERNATE DISK TYPE: EXTERNAL TEETH
(NON-CORE DATA) INSIDE DIAMETER 6.250 INCHES NOMINAL
(NON-CORE DATA) THICKNESS 0.109 INCHES NOMINAL
(NON-CORE DATA) LARGEST OUTSIDE DIAMETER 8.625 INCHES NOMINAL
(NON-CORE DATA) LUG WIDTH 0.563 INCHES NOMINAL
(NON-CORE DATA) ANGLE BETWEEN LUGS IN DEG 60.000 NOMINAL
(NON-CORE DATA) TOOTH ARRANGEMENT SETS EQUALLY SPACED
(NON-CORE DATA) DESIGN FORM SOLID
(NON-CORE DATA) SMALLEST INSIDE DIAMETER 6.250 INCHES NOMINAL
(NON-CORE DATA) TEETH SET QUANTITY 6
(NON-CORE DATA) TEETH QUANTITY PER SET 2
(NON-CORE DATA) TEETH PITCH DIAMETER 8.250 INCHES NOMINAL
(NON-CORE DATA) FSC APPLICATION DATA VEHICULAR
MANUFACTURERS CODE 12603
DESIGN CONTROL REFERENCE 217162

Restrictions/Controls & Freight Information | NSN 2520-00-939-6605

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 AJ U.S. Army Soldier's Biological and Chemical
Command
Natick, MA 01760
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 2520-00-939-6605

Category Code Description
Cognizance Codes9CNavy-owned stocks of defense construction material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
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
Z
EA : Each