NSN 5985-00-666-0947 D51747, D851747, 00-666-0947
Product Details | VARIABLE ATTENUATOR
5985-00-666-0947 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: D51747, D851747, 5985-00-666-0947, 00-666-0947, 5985006660947, 006660947
Electrical and Electronic Equipment Components | Antennas, Waveguides, and Related Equipment
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | 01 JAN 1963 | 00-666-0947 | 00838 ( ATTENUATOR, VARIABLE ) |
Drawings & Photos | NSN 5985-00-666-0947
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Technical Data | NSN 5985-00-666-0947
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | WAVEGUIDE |
| FREQUENCY RANGE | 925.000 MEGAHERTZ MINIMUM AND 1.225 GIGAHERTZ MAXIMUM |
| IMPEDANCE RATING IN OHMS | 51.0 INPUT-OUTPUT |
| VOLTAGE STANDING WAVE RATIO | 1.20 AND 1.30 |
| POWER RATING | 3.0 KILOWATTS PEAK |
| OVERALL ATTENUATION RANGE IN DECIBELS | 0.0 TO 12.0 |
| ATTENUATION VARIATION METHOD | CONTINUOUS |
| BODY STYLE | 2A WAVEGUIDE TYPE |
| OVERALL LENGTH | 12.000 INCHES NOMINAL |
| OVERALL HEIGHT | 2.250 INCHES MINIMUM AND 2.311 INCHES MAXIMUM |
| OVERALL WIDTH | 4.157 INCHES MINIMUM AND 4.219 INCHES MAXIMUM |
| ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 SHAFT |
| SHAFT TYPE | ROUND |
| SHAFT DIAMETER | 0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| SHAFT LENGTH | 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM |
| TERMINAL TYPE AND QUANTITY | 2 CONNECTOR, COAXIAL, MALE |
| COAXIAL CONNECTOR SERIES DESIGNATION | BNC |
| 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 | 2.688 INCHES NOMINAL |
| III OPERATING TEMP RANGE | -55.0 TO 100.0 DEG CELSIUS |
| III FSC APPLICATION DATA | TEST SET EXCEPT SPECIALLY DESIGNED |
Restrictions/Controls & Freight Information | NSN 5985-00-666-0947
| 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. |
| 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 | 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 5985-00-666-0947
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 | J | NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |