NSN 5985-00-256-6391 B1182007, B118200-7, T500L
Product Details | VARIABLE ATTENUATOR
5985-00-256-6391 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: B1182007, B118200-7, T500L, 5985-00-256-6391, 00-256-6391, 5985002566391, 002566391
Electrical and Electronic Equipment Components | Antennas, Waveguides, and Related Equipment
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | 01 JAN 1963 | 00-256-6391 | 00838 ( ATTENUATOR, VARIABLE ) |
Drawings & Photos | NSN 5985-00-256-6391
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Technical Data | NSN 5985-00-256-6391
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | AUDIO |
| SCHEMATIC DIAGRAM DESIGNATOR | 3D BRIDGED T |
| IMPEDANCE RATING IN OHMS | 500.0 INPUT-OUTPUT |
| POWER RATING | 4.0 WATTS AVERAGE |
| OVERALL ATTENUATION RANGE IN DECIBELS | 0.0 TO 38.0 |
| OVERALL ATTENUATION ACCURACY IN DECIBELS | -1.90 TO 1.90 |
| ATTENUATION VARIATION METHOD | CONTINUOUS |
| BODY STYLE | 33A CYLINDRICAL W/SIDE TERMINALS |
| OVERALL LENGTH | 2.375 INCHES NOMINAL |
| OVERALL WIDTH | 1.951 INCHES NOMINAL |
| BODY DIAMETER | 1.625 INCHES NOMINAL |
| BUSHING LENGTH | 0.406 INCHES NOMINAL |
| BODY LENGTH | 1.875 INCHES NOMINAL |
| ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 SHAFT |
| SHAFT TYPE | ROUND |
| SHAFT DIAMETER | 0.250 INCHES NOMINAL |
| SHAFT LENGTH | 2.000 INCHES NOMINAL |
| TERMINAL TYPE AND QUANTITY | 6 TAB, SOLDER LUG |
| MOUNTING FACILITY TYPE AND QUANTITY | 1 THREADED BUSHING |
| MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR | UNEF |
| MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER | 0.375 INCHES |
| MOUNTING THREAD QUANTITY | 32 PER INCH |
Restrictions/Controls & Freight Information | NSN 5985-00-256-6391
| 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: | B | Munitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.) |
| 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 |
Management | NSN 5985-00-256-6391
Navy| 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 | X | SEMIACTIVE ITEM-NO REPLACEMENT (NON-STOCKED ITEMS) A potentially inactive NSN which must be retained in the supply system as an item of supply because (1) stocks of the item are on hand or in use below the wholesale level and (2) the NSN is cited in equipment authorization documents TO & E, TA, TM, etc., or in-use assets are being reported. 1. Items are authorized for central procurement but not authorized for stockage at wholesale level. 2. Requisitions for in-use replacement will be authorized in accordance with individual Military Service directives. 3. Requisitions may be submitted as requirements generate. Repetitive demands may dictate an AAC change to permit wholesale stockage. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |