NSN 3020-00-713-8245 12937872, 1293787-2, 9053335
Product Details | SPUR ANTIBACKLASH GEAR
3020-00-713-8245 An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.
Part Alternates: 12937872, 1293787-2, 9053335, 3020-00-713-8245, 00-713-8245, 3020007138245, 007138245
Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | 01 JAN 1961 | 00-713-8245 | 26668 ( GEAR, ANTIBACKLASH, SPUR ) |
Drawings & Photos | NSN 3020-00-713-8245
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Technical Data | NSN 3020-00-713-8245
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY FIRST GEAR |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-355,COND T3 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR MIL-S-7720,COND B MIL SPEC SINGLE MATERIAL RESPONSE HUB QQ-A-355,COND T3 FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR |
| SURFACE TREATMENT | ANODIZE FIRST GEAR PASSIVATE HUB ANODIZE SECOND GEAR |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 171,FINISH 7.1.1STDC1LJEA171,FINSISH 7.1.1 MIL STD SINGLE TREATMENT RESPONSE FIRST GEAR |
| TEETH QUANTITY | 182 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | 4 PROTRUDING HUBS |
| PITCH DIAMETER | 4.0000 INCHES NOMINAL |
| NOMINAL OVERALL LENGTH | 0.380 INCHES |
| NOMINAL OUTSIDE DIAMETER | 4.042 INCHES |
| FACE NOMINAL WIDTH | 0.182 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.113 INCHES FIRST END 0.085 INCHES SECOND END |
| BORE STYLE | 1 PLAIN BOTH ENDS |
| BORE NOMINAL DIAMETER | 0.240 INCHES BOTH ENDS |
| HUB STYLE DESIGNATOR | 1 PLAIN BOTH ENDS |
| HUB NOMINAL DIAMETER | 0.875 INCHES FIRST END 0.609 INCHES SECOND END |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 2 PLAIN TRANSVERSELY THROUGH FACE |
| MOUNTING HOLE NOMINAL DIAMETER | 0.406 INCHES TRANSVERSELY THROUGH FACE |
| SPECIAL FEATURES | MTG HOLS 180 DEGS APART; WEAPON SYSTEM ESSENTIAL |
| CRITICALITY CODE JUSTIFICATION | FEAT |
| III END ITEM IDENTIFICATION | GUIDED MISSILE, INTERCEPT |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | GEAR ASSEMBLY, SPUR, ANTI-BACKLASH |
Restrictions/Controls & Freight Information | NSN 3020-00-713-8245
| 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: | Y | The item does not have a nuclear hardened feature but does have other critical feature(s) 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 | 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 3020-00-713-8245
Army| 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 | 1 | REPARABLE ITEMS (Exclusive of Insurance and Provisioning Items.) This code will be used to identify serviceable or unserviceable items of a durable nature which when unserviceable normally can be repaired economically by depots or lower echelons of maintenance. |
| 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 | F | If condemned or uneconomically repairable, then dispose at Direct Support (DS) level. |
| Acquisition Advice Codes | J | NOT 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 Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |