NSN 5990-00-677-6480 M20708/31-01C, M207083101C, MIL-S-20708/31
Product Details | DIFFERENTIAL TRANSMITTER SYNCHRO
5990-00-677-6480 A synchro, the rotor of which is mechanically positioned for modifying electrical angular information, received from a transmitter synchro and transmitting to receiver synchro or control transformer synchro electrical information corresponding to the sum or difference of the electrical input angle and its rotor position angle. Does not include variable resistors, goniometers, variable transformers, or items with dials.
Part Alternates: M20708/31-01C, M207083101C, MIL-S-20708/31, MILS2070831, 18TDX4B, 18TDX4C, 5990-00-677-6480, 00-677-6480, 5990006776480, 006776480
Electrical and Electronic Equipment Components | Synchros and Resolvers
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | 01 JAN 1963 | 00-677-6480 | 02071 ( SYNCHRO, DIFFERENTIAL TRANSMITTER ) |
Drawings & Photos | NSN 5990-00-677-6480
Cross Reference | NSN 5990-00-677-6480
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Related Products | NSN 5990-00-677-6480
Technical Data | NSN 5990-00-677-6480
| Characteristic | Specifications |
|---|---|
| BODY SIZE | 18 |
| STATOR INPUT VOLTAGE RATING IN VOLTS | 90.0 NOMINAL |
| STATOR INPUT CURRENT RATING | 450.0 MILLIAMPERES NOMINAL |
| STATOR INPUT ELECTRICAL POWER RATING | 4.5 WATTS NOMINAL |
| FREQUENCY IN HERTZ | 400.0 NOMINAL |
| ZSO IMPEDANCE MAGNITUDE IN OHMS | 178.00 MINIMUM AND 266.00 MAXIMUM |
| ZSO IMPEDANCE ANGLE IN DEG | 83.00 MINIMUM AND 87.00 MAXIMUM |
| ZRS IMPEDANCE MAGNITUDE IN OHMS | 26.00 MINIMUM AND 38.00 MAXIMUM |
| ZRS IMPEDANCE ANGLE IN DEG | 47.00 MINIMUM AND 56.00 MAXIMUM |
| TRANSFORMATION RATIO | 1.154 ROTOR TO STATOR NOMINAL |
| PHASE SHIFT ANGLE IN DEG | 3.000 INPUT TO OUTPUT NOMINAL |
| MAXIMUM TEMP RISE | 20.0 DEG CELSIUS |
| ELECTRICAL ERROR ANGULAR RANGE IN MINUTES | -8.0 TO 8.0 |
| ACTUATOR FRICTION TORQUE AT MINUS 55 DEG CELSIUS | 0.10 INCH-OUNCES NOMINAL |
| TORQUE GRADIENT PER ANGULAR DEG | 0.060 INCH-OUNCES MINIMUM |
| BODY STYLE | A3 STANDARD ROUND C |
| SHOULDER DIAMETER | 1.5615 INCHES MINIMUM AND 1.5620 INCHES MAXIMUM |
| PILOT DIAMETER | 0.9370 INCHES MINIMUM AND 0.9375 INCHES MAXIMUM |
| OVERALL LENGTH | 3.2050 INCHES NOMINAL |
| FLANGE DIAMETER | 1.7450 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM |
| FLANGE THICKNESS | 0.0930 INCHES NOMINAL |
| UNDERCUT DIAMETER | 1.6250 INCHES NOMINAL |
| UNDERCUT WIDTH | 0.0780 INCHES NOMINAL |
| PILOT LENGTH | 0.0400 INCHES NOMINAL |
| SHOULDER LENGTH | 0.1320 INCHES NOMINAL |
| MOUNTING SURFACE TO TERMINAL END DISTANCE | 2.6700 INCHES NOMINAL |
| SHAFT TYPE | SPLINE W/THREADS SINGLE SHAFT |
| SHAFT DIAMETER | 0.1870 INCHES MINIMUM AND 0.1872 INCHES MAXIMUM SINGLE SHAFT |
| SHAFT LENGTH | 0.5400 INCHES NOMINAL SINGLE SHAFT |
| SHAFT THREAD LENGTH | 0.2000 INCHES NOMINAL SINGLE SHAFT |
| SPLINE TOOTH QUANTITY | 21 SINGLE SHAFT |
| SPLINE TOOTH DIAMETRAL PITCH | 120 SINGLE SHAFT |
| SHAFT THREAD SERIES DESIGNATOR | UNF SINGLE SHAFT |
| SHAFT NOMINAL THREAD SIZE | 0.190 INCHES SINGLE SHAFT |
| SHAFT THREAD CLASS | 2A SINGLE SHAFT |
| SHAFT THREAD DIRECTION | RIGHT-HAND SINGLE SHAFT |
| TERMINAL TYPE AND QUANTITY | 6 SCREW |
| TERMINAL LOCATION | REAR |
| BODY MATERIAL | STEEL, STAINLESS |
| TEST DATA DOCUMENT | 81349-MIL-S-20708 SPECIFICATION |
| SPECIFICATION/STANDARD DATA | 81349-MIL-S-20708/31 GOVERNMENT SPECIFICATION |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-S-20708/31 |
| MANUFACTURERS CODE | 81349 |
| DEFINITIVE GOVERNMENT SPEC/STD | M20708/31-01C |
Restrictions/Controls & Freight Information | NSN 5990-00-677-6480
| 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 |
| 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 | 062120 | GENERATORS/MOTORS/PARTS NOI |
| Less than car load rating | ||
| Less than truck load rating | W | Rating Variable |
| Water commodity Code | 593 | 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 | V | Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above. |
| 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 5990-00-677-6480
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 |