NSN 3020-00-525-9937 117D2971, 117D2971REVD4, 00-525-9937
Product Details | GEAR CLUSTER
3020-00-525-9937 A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. It may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. It is designed to mount on a shaft. For items consisting of a shaft with an integral complement(s) or gear teeth, see GEARSHAFT (as modified). Excludes GEAR SUBASSEMBLY, SPEED DECREASER.
Part Alternates: 117D2971, 117D2971REVD4, 3020-00-525-9937, 00-525-9937, 3020005259937, 005259937
Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | 28 AUG 1974 | 00-525-9937 | 36636 ( GEAR CLUSTER ) |
Drawings & Photos | NSN 3020-00-525-9937
Demand History | NSN 3020-00-525-9937
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 117D2971 | 2025-10-302 | 6 | DIBBS |
| 117D2971 | 2025-07-190 | 7 | DIBBS |
| 117D2971 | 2024-07-206 | 11 | DIBBS |
| 117D2971 | 2023-11-334 | 3 | DIBBS |
| 117D2971 | 2023-10-303 | 1 | DIBBS |
| 117D2971 | 2019-05-143 | 5 | DIBBS |
| 117D2971 | 2019-03-66 | 5 | DIBBS |
| 3020-00-525-9937 | 2018-12-340 | 2 | DIBBS |
| 3020-00-525-9937 | 2018-10-295 | 2 | DIBBS |
| 3020-00-525-9937 | 2015-04-99 | 10 | DIBBS |
| 3020-00-525-9937 | 2012-08-235 | 26 | DIBBS |
| 3020-00-525-9937 | 2011-05-143 | 4 | DIBBS |
| 3020-00-525-9937 | 2010-08-242 | 33 | DIBBS |
| 3020-00-525-9937 | 2010-07-210 | 14 | DIBBS |
| 3020-00-525-9937 | 2010-04-92 | 3 | DIBBS |
| 3020-00-525-9937 | 2007-01-23 | 10 | DIBBS |
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Related Products | NSN 3020-00-525-9937
Technical Data | NSN 3020-00-525-9937
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL COMP 8620 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171,FINISH NO.5.3.1 OR NO.5.3.2 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM TEETH |
| CONSTRUCTION | SOLID |
| DESIGN TYPE | SPUR FIRST GEAR SPUR SECOND GEAR |
| NOMINAL OUTSIDE DIAMETER | 4.550 INCHES FIRST GEAR 1.556 INCHES SECOND GEAR |
| NOMINAL OVERALL LENGTH | 4.120 INCHES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 10 ALL GEARS |
| BORE STYLE | 18 W/STEPPED COUNTERBORE FIRST END |
| BORE NOMINAL DIAMETER | 0.440 INCHES BOTH ENDS |
| COUNTERBORE NOMINAL DEPTH | 1.240 INCHES FIRST END |
| COUNTERBORE NOMINAL DIAMETER | 1.181 INCHES FIRST END |
| HUB STYLE DESIGNATOR | 4A 1 STEP SECOND END 4C 3 STEPS BETWEEN FIRST AND SECOND GEAR |
| HUB NOMINAL LENGTH | 0.670 INCHES SECOND END 1.080 INCHES BETWEEN FIRST AND SECOND GEAR |
| HUB NOMINAL DIAMETER | 0.751 INCHES SECOND END 2.020 INCHES BETWEEN FIRST AND SECOND GEAR |
| ATTACHMENT METHOD | MOUNTING HOLE |
Restrictions/Controls & Freight Information | NSN 3020-00-525-9937
| Category | Code | Description |
|---|---|---|
| Shelf-Life Code: | 0 | Nondeteriorative |
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Controlled Inventory Item Code: | U | UNCLASSIFIED |
| Precious Metals Indicator Code: | U | Precious 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 | 197339 | WHEELS COG/GEAR/PINION I/S |
| Less than car load rating | ||
| Less than truck load rating | R | 65.0 |
| Water commodity Code | 593 | unknown |
| Originating Activity Code | KE | Naval ICP Philadelphia, PA 19111 |
| 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 3020-00-525-9937
Army
Air Force
Navy| Category | Code | Description |
|---|---|---|
| Materiel Category and Inventory Manager | J | Ground Forces Support Materiel (DLA/GSA Items) |
| Appropriation and Budget Activity | 2 | Stock Fund Secondary Items |
| Management Inventory Segment | 2 | NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable. |
| Specific Group/Generic Code | 0 | Medical Materiel |
| Weapons Systems/End Item or Homogeneous Group | 00 | DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item |
| Accounting Requirements Code | X | 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 Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DA | Department of the Army |
| Service Organization | A | U.S. Army |
| Reparability | Z | This is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item. |
| Acquisition Advice Codes | D | DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |
| Category | Code | Description |
|---|---|---|
| Budget Code | 9 | 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. |
| Price Validation | N | The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
|
| Fund Code | SF | Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point. |
| Materiel Management Aggregation Code | SX | SX:AF SICA RESIDUAL MMAC-OC-ALC |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DF | Department of the Air Force |
| Service Organization | F | U.S. Air Force |
| Reparability | N | Stock Fund (except Munitions) |
| Acquisition Advice Codes | D | DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |
| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9B | Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | D | DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |