NSN 3020-00-278-5152 179792-000, 00-278-5152, 179792000
Product Details | SPUR ANTIBACKLASH GEAR
3020-00-278-5152 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: 179792-000, 3020-00-278-5152, 00-278-5152, 3020002785152, 179792000, 002785152
Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | 01 JAN 1961 | 00-278-5152 | 26668 ( GEAR, ANTIBACKLASH, SPUR ) |
Drawings & Photos | NSN 3020-00-278-5152
Cross Reference | NSN 3020-00-278-5152
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 179792-000 | 81413 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION I |
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Technical Data | NSN 3020-00-278-5152
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY 2024 BODY STEEL COMP 303 OR STEEL COMP 303S HUB |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY 66,SAE 30303 FED STD SINGLE MATERIAL RESPONSE OR MIL-S-7720,COND A MIL SPEC SINGLE MATERIAL RESPONSE HUB |
| SURFACE TREATMENT | PASSIVATE HUB |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE BODY MIL-F-14072,FINISH 300 MIL SPEC SINGLE TREATMENT RESPONSE HUB MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE TEETH |
| TEETH QUANTITY | 52 |
| TOOTH FORM | STUB |
| PRESSURE ANGLE | 20.0000 DEGREES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 9 |
| STYLE DESIGNATOR | 2 PROTRUDING HUB |
| PITCH DIAMETER | 0.8125 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 0.843 INCHES |
| FACE NOMINAL WIDTH | 0.119 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.020 INCHES FIRST END |
| BORE STYLE | 1 PLAIN BOTH ENDS |
| BORE NOMINAL DIAMETER | 0.2194 INCHES BOTH ENDS |
| HUB STYLE DESIGNATOR | 1 PLAIN FIRST END |
| HUB NOMINAL DIAMETER | 0.750 INCHES FIRST END |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 3 COUNTERSUNK AXIALLY THROUGH BODY, SECOND END |
| MOUNTING HOLE NOMINAL DIAMETER | 0.070 INCHES AXIALLY THROUGH BODY, SECOND END |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 0.172 INCHES AXIALLY THROUGH BODY, SECOND END |
| MANUFACTURERS CODE | 81413 |
| DESIGN CONTROL REFERENCE | 179792-000 |
Restrictions/Controls & Freight Information | NSN 3020-00-278-5152
| 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 | 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 3020-00-278-5152
Navy| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9C | Navy-owned stocks of defense construction material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | S9C | Defense Supply Center Columbus Columbus, OH 43215 |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | V | TERMINAL 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 Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |