NSN 5985-00-678-5297 SMC336287, 00-678-5297, 006785297
Product Details | VARIABLE ATTENUATOR
5985-00-678-5297 A device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion, by maintaining substantially constant output and/or input impedance match. Continuously variable resistive devices must consist of at least two sections or one section with at least two rotating contacts. The item must have an overall attenuation rating. Includes tandem mounted variable resistors designed to function as an attenuator but whose terminals are not connected. See also RESISTOR, VAIABLE (as modified).
Part Alternates: SMC336287, 5985-00-678-5297, 00-678-5297, 5985006785297, 006785297
Electrical and Electronic Equipment Components | Antennas, Waveguides, and Related Equipment
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | 01 JAN 1963 | 00-678-5297 | 00838 ( ATTENUATOR, VARIABLE ) |
Drawings & Photos | NSN 5985-00-678-5297
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Technical Data | NSN 5985-00-678-5297
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | AUDIO |
| SCHEMATIC DIAGRAM DESIGNATOR | 12D BRIDGED T |
| IMPEDANCE RATING IN OHMS | 600.0 INPUT-OUTPUT |
| OVERALL ATTENUATION RANGE IN DECIBELS | 0.0 TO 10.0 |
| OVERALL ATTENUATION ACCURACY IN DECIBELS | -5.00 TO 5.00 |
| ATTENUATION VARIATION METHOD | STEPPED |
| STEP POSITION QUANTITY | 20 |
| ATTENUATION PER STEP IN DECIBELS | 0.5 |
| BODY STYLE | 33A CYLINDRICAL W/SIDE TERMINALS |
| OVERALL LENGTH | 2.750 INCHES NOMINAL |
| OVERALL WIDTH | 2.703 INCHES NOMINAL |
| BODY DIAMETER | 2.344 INCHES NOMINAL |
| BODY LENGTH | 2.062 INCHES NOMINAL |
| ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 SHAFT |
| SHAFT TYPE | ROUND, FLATTED |
| FIRST FLAT LENGTH | 0.500 INCHES NOMINAL |
| FLAT HEIGHT | 0.205 INCHES MAXIMUM |
| SHAFT DIAMETER | 0.250 INCHES NOMINAL |
| SHAFT LENGTH | 0.688 INCHES NOMINAL |
| TERMINAL TYPE AND QUANTITY | 2 PIN |
| MOUNTING FACILITY TYPE AND QUANTITY | 2 THREADED HOLE |
| MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR | UNC |
| MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER | 0.164 INCHES |
| MOUNTING THREAD QUANTITY | 32 PER INCH |
| MOUNTING FACILITY PATTERN | TWO POSITION IN-LINE |
| DISTANCE BETWEEN MOUNTING FACILITY CENTERS | 1.500 INCHES NOMINAL |
Restrictions/Controls & Freight Information | NSN 5985-00-678-5297
| Category | Code | Description |
|---|---|---|
| Shelf-Life Code: | 0 | Nondeteriorative |
| Hazardous Material Indicator Code | P | There 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: | 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 | 061700 | ELEC APPLIANCES/INSTRUMENTS NOI |
| Less than car load rating | ||
| Less than truck load rating | J | 100.2 |
| Water commodity Code | 658 | 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 | H | Signal Corps supplies and equipment, including radio equipment and supplies, communications equipment and supplies, electrical equipment and supplies, etc. |
| 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 |