NSN 3020-01-084-1578 AP64U85, AP64U-85, P16384C
Product Details | SPUR ANTIBACKLASH GEAR
3020-01-084-1578 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: AP64U85, AP64U-85, P16384C, P16-3-84-C, 3020-01-084-1578, 01-084-1578, 3020010841578, 010841578
Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | 11 OCT 1979 | 01-084-1578 | 26668 ( GEAR, ANTIBACKLASH, SPUR ) |
Drawings & Photos | NSN 3020-01-084-1578
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Technical Data | NSN 3020-01-084-1578
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL COMP 303 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,TYPE 303,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE HUB |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| TEETH QUANTITY | 84 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 10 |
| BACKLASH DESIGNATION | GRADE E |
| STYLE DESIGNATOR | 2 PROTRUDING HUB |
| PITCH DIAMETER | 1.3115 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM |
| NOMINAL OVERALL LENGTH | 0.385 INCHES |
| FACE NOMINAL WIDTH | 0.104 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.281 INCHES FIRST END |
| HUB NOMINAL DIAMETER | 0.248 INCHES FIRST END |
| CLAMPING SURFACE NOMINAL LENGTH | 0.250 INCHES FIRST END |
| ATTACHMENT METHOD | CLAMP AND MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 1 PLAIN TRANSVERSELY THROUGH HUB, FIRST END |
| III END ITEM IDENTIFICATION | WSR-74C RADAR, LWR |
Restrictions/Controls & Freight Information | NSN 3020-01-084-1578
| 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 |
| Electro-static Discharge Susceptible: | A | No known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity |
| Precious Metals Indicator Code: | A | Item does not contain precious metal |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Automatic Data Processing Equipment: | 0 | Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9) |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||