Product Details | DIFFERENTIAL TRANSMITTER SYNCHRO

5990-00-018-9720 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: M20708/48-001, M20708/48-01C, M2070848001, M207084801C, MILS2070848, MILS20708-48, 15A4931, 15A493-1, 23TDX4, 23TDX4C, 5990-00-018-9720, 00-018-9720, 5990000189720, 000189720

Electrical and Electronic Equipment Components | Synchros and Resolvers

Supply Group (FSG) NSN Assign. NIIN
59 25 APR 1967 00-018-9720

Drawings & Photos | NSN 5990-00-018-9720


Cross Reference | NSN 5990-00-018-9720

Part Number Cage Code Manufacturer
15A493-1 80048 VICKERS INC ELECTRIC PRODUCTS DIVISION
23TDX4 56232 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
23TDX4C 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
M20708/48-001 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
M20708/48-01C 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MILS20708-48 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 5990-00-018-9720

Characteristic Specifications
BODY SIZE 23
STATOR INPUT VOLTAGE RATING IN VOLTS 90.0 NOMINAL
STATOR INPUT CURRENT RATING 866.0 MILLIAMPERES MAXIMUM
STATOR INPUT ELECTRICAL POWER RATING 7.0 MILLIWATTS MAXIMUM
FREQUENCY IN HERTZ 400.0 NOMINAL
ZRO IMPEDANCE ANGLE IN DEG 47.00 MINIMUM AND 53.00 MAXIMUM
ZSO IMPEDANCE MAGNITUDE IN OHMS 90.00 MINIMUM AND 112.00 MAXIMUM
ZSO IMPEDANCE ANGLE IN DEG 84.00 NOMINAL
ZRS IMPEDANCE MAGNITUDE IN OHMS 11.00 MINIMUM AND 15.00 MAXIMUM
ZRS IMPEDANCE ANGLE IN DEG 47.00 MINIMUM AND 53.00 MAXIMUM
TRANSFORMATION RATIO 1.154 ROTOR TO STATOR NOMINAL
PHASE SHIFT ANGLE IN DEG 2.000 INPUT TO OUTPUT NOMINAL
MAXIMUM TEMP RISE 25.0 DEG CELSIUS
ELECTRICAL ERROR ANGULAR RANGE IN MINUTES -8.0 TO 8.0
ACTUATOR FRICTION TORQUE AT PLUS 25 DEG CELSIUS 0.20 INCH-OUNCES MAXIMUM
TORQUE GRADIENT PER ANGULAR DEG 0.160 INCH-OUNCES MINIMUM
BODY STYLE A4 STANDARD ROUND D
SHOULDER DIAMETER 1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM
PILOT DIAMETER 0.5950 INCHES NOMINAL
SECOND SHOULDER DIAMETER 1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM
SECOND SHOULDER LENGTH 0.1700 INCHES NOMINAL
OVERALL LENGTH 4.5490 INCHES NOMINAL
FLANGE DIAMETER 2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM
FLANGE THICKNESS 0.2500 INCHES NOMINAL
BODY DIAMETER 1.9900 INCHES MAXIMUM
PILOT LENGTH 0.0430 INCHES NOMINAL
SHOULDER LENGTH 0.2500 INCHES NOMINAL
AFT OF FIRST FLANGE DIAMETER 1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM
MOUNTING SURFACE TO TERMINAL END DISTANCE 3.8300 INCHES NOMINAL
SHAFT TYPE SPLINE W/THREADS SINGLE SHAFT
SHAFT DIAMETER 0.2403 INCHES MINIMUM AND 0.2405 INCHES MAXIMUM SINGLE SHAFT
SHAFT LENGTH 0.7190 INCHES NOMINAL SINGLE SHAFT
SHAFT THREAD LENGTH 0.2900 INCHES NOMINAL SINGLE SHAFT
SPLINE TOOTH QUANTITY 22 SINGLE SHAFT
SPLINE TOOTH DIAMETRAL PITCH 96 SINGLE SHAFT
SHAFT THREAD SERIES DESIGNATOR UNF SINGLE SHAFT
SHAFT NOMINAL THREAD SIZE 0.250 INCHES SINGLE SHAFT
SHAFT THREAD DIRECTION RIGHT-HAND SINGLE SHAFT
TERMINAL TYPE AND QUANTITY 5 SCREW
TERMINAL LOCATION REAR
BODY MATERIAL STEEL, STAINLESS
TEST DATA DOCUMENT 81349-MIL-S-20708 SPECIFICATION
SPECIFICATION/STANDARD DATA 81349-MIL-S-20708/48 GOVERNMENT SPECIFICATION
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT MILS20708-48

Restrictions/Controls & Freight Information | NSN 5990-00-018-9720

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:BMunitions 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:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious 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:0Represents 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 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 TX Defense Supply Center Columbus
Columbus, OH 43218
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 5990-00-018-9720

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each