NSN 5985-00-831-5991 B659003, CN796U, 300
Product Details | VARIABLE ATTENUATOR
5985-00-831-5991 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: B659003, CN796U, 300, 30-0, 300CATAL0G432C, 30-0CATAL0G432C, 432C, 5985-00-831-5991, 00-831-5991, 5985008315991, 008315991
Electrical and Electronic Equipment Components | Antennas, Waveguides, and Related Equipment
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | 01 JAN 1962 | 00-831-5991 | 00838 ( ATTENUATOR, VARIABLE ) |
Demand History | NSN 5985-00-831-5991
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 300 | 2025-04-120 | 33 | US |
| 300 | 2012-09-266 | 4 | |
| 300 | 2012-09-260 | 4 | |
| 300 | 2012-09-259 | 4 |
Cross Reference | NSN 5985-00-831-5991
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Technical Data | NSN 5985-00-831-5991
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | TRANSMISSION LINE |
| FREQUENCY RANGE | 0.000 HERTZ MINIMUM AND 500.000 MEGAHERTZ MAXIMUM |
| IMPEDANCE RATING IN OHMS | 50.0 INPUT-OUTPUT |
| POWER RATING | 0.5 WATTS AVERAGE |
| INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS | 0.0 |
| OVERALL ATTENUATION RANGE IN DECIBELS | 0.0 TO 101.0 |
| ATTENUATION VARIATION METHOD | STEPPED |
| STEP POSITION QUANTITY | 101 |
| ATTENUATION PER STEP IN DECIBELS | 1.0 |
| OVERALL LENGTH | 9.750 INCHES NOMINAL |
| OVERALL HEIGHT | 2.000 INCHES NOMINAL |
| OVERALL WIDTH | 2.000 INCHES NOMINAL |
| TERMINAL TYPE AND QUANTITY | 2 CONNECTOR, COAXIAL, MALE |
Restrictions/Controls & Freight Information | NSN 5985-00-831-5991
| 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: | 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 |
|---|---|---|
| NMF Description | 062960 | REOSTATS/PARTS NOI |
| Less than car load rating | P | 77.5 |
| Less than truck load rating | P | 77.5 |
| Water commodity Code | 72D | 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 | Z | unknonwn |
| HAZMAT | ||
| Type of Cargo | Z | No special type of cargo code applicable |
Management | NSN 5985-00-831-5991
Navy| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9N | Navy-owned stocks of defense electronic material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | S9E | Defense Supply Center Columbus Columbus, OH 43218 |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | Y | TERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |