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NSN 5990-00-018-9720, 5990000189720
SYNCHRO,DIFFERENTIAL TRANSMITTER

Federal Supply Classification
FSC 5990 - Synchros and Resolvers
National Item Identification Number
NIIN 000189720
Codification Country
United States
Item Name Code
INC 02071
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 5990-00-018-9720

National Stock Number (NSN) 5990-00-018-9720, or NIIN 000189720, (synchro,differential transmitter) was assigned April 25, 1967 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 7 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is somewhat common among different platforms, belonging to 6 different weapons systems.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is controlled by QPL procedures. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 02071. [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.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5990000189720 contains an unknown precious metal.

This NSN is associated to Schedule B 9014900000: parts & accessories for direction finding compasses and other navigational instruments and appliances. The Schedule B End Use is listed as marine engines, parts. NAICS classification category 334511: search, detection, navigation, guidance, aeronautical, and nautical system and instrument manufacturing.

This information was last updated on .


Technical Characteristics

ELECTRICAL ERROR ANGULAR RANGE IN MINUTES
(AJVL) -8.0 TO 8.0
ACTUATOR FRICTION TORQUE AT PLUS 25 DEG CELSIUS
(AJVT) 0.20 INCH-OUNCES MAXIMUM
AFT OF FIRST FLANGE DIAMETER
(AJWV) 1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM
BODY DIAMETER
(ABPM) 1.9900 INCHES MAXIMUM
BODY MATERIAL
(CQRG) STEEL CORROSION RESISTING
BODY SIZE
(AJSL) 23
BODY STYLE
(AAQL) STANDARD ROUND D
FLANGE DIAMETER
(ABKK) 2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM
FLANGE THICKNESS
(ABKU) 0.2500 INCHES NOMINAL
FREQUENCY IN HERTZ
(AJSS) 400.0 NOMINAL
OVERALL LENGTH
(ABHP) 4.5490 INCHES NOMINAL
MAXIMUM TEMP RISE
(AHCG) 25.0 CELSIUS
MOUNTING SURFACE TO TERMINAL END DISTANCE
(AJWX) 3.8300 INCHES NOMINAL
SHOULDER LENGTH
(AJWR) 0.2500 INCHES NOMINAL
PHASE SHIFT ANGLE IN DEG
(AJVF) 2.000 INPUT TO OUTPUT NOMINAL
PILOT LENGTH
(AJWQ) 0.0430 INCHES NOMINAL
PILOT DIAMETER
(AAVL) 0.5950 INCHES NOMINAL
SECOND SHOULDER DIAMETER
(AAZW) 1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM
SECOND SHOULDER LENGTH
(AAZX) 0.1700 INCHES NOMINAL
SHAFT DIAMETER
(ABWV) 0.2403 INCHES MINIMUM AND 0.2405 INCHES MAXIMUM SINGLE SHAFT
SHAFT NOMINAL THREAD SIZE
(CWBH) 0.250 INCHES SINGLE SHAFT
SHAFT THREAD CLASS
(AKAN) 2A SINGLE SHAFT
SHAFT THREAD DIRECTION
(AKAF) RIGHT-HAND SINGLE SHAFT
SHAFT LENGTH
(ABXF) 0.7190 INCHES NOMINAL SINGLE SHAFT
SHAFT THREAD LENGTH
(CQWQ) 0.2900 INCHES NOMINAL SINGLE SHAFT
SHAFT THREAD SERIES DESIGNATOR
(AJYY) UNF SINGLE SHAFT
SHAFT TYPE
(CRSJ) SPLINE W/THREADS SINGLE SHAFT
SHOULDER DIAMETER
(AAVH) 1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM
ZRO IMPEDANCE ANGLE IN DEG
(AJTH) 47.00 MINIMUM AND 53.00 MAXIMUM
ZRS IMPEDANCE ANGLE IN DEG
(AJTM) 47.00 MINIMUM AND 53.00 MAXIMUM
ZRS IMPEDANCE MAGNITUDE IN OHMS
(AJTL) 11.00 MINIMUM AND 15.00 MAXIMUM
ZSO IMPEDANCE ANGLE IN DEG
(AJTK) 84.00 NOMINAL
ZSO IMPEDANCE MAGNITUDE IN OHMS
(AJTJ) 90.00 MINIMUM AND 112.00 MAXIMUM
SPECIFICATION/STANDARD DATA
(ZZZK) 81349-MIL-S-20708/48 GOVERNMENT SPECIFICATION
SPLINE TOOTH DIAMETRAL PITCH
(AJXA) 96 SINGLE SHAFT
SPLINE TOOTH QUANTITY
(AJVM) 22 SINGLE SHAFT
STATOR INPUT VOLTAGE RATING IN VOLTS
(AJSN) 90.0 NOMINAL
STATOR INPUT CURRENT RATING
(AJSP) 866.0 MILLIAMPERES MAXIMUM
STATOR INPUT ELECTRICAL POWER RATING
(AJSQ) 7.0 MILLIWATTS MAXIMUM
TERMINAL LOCATION
(CQTM) REAR
TERMINAL TYPE AND QUANTITY
(TTQY) 5 SCREW
TEST DATA DOCUMENT
(TEST) 81349-MIL-S-20708 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
TORQUE GRADIENT PER ANGULAR DEG
(AJVV) 0.160 INCH-OUNCES MINIMUM
TRANSFORMATION RATIO
(CSJY) 1.154 ROTOR TO STATOR NOMINAL
MAXIMUM TEMP RISE
(AHCG) 25.0 DEG CELSIUS
BODY MATERIAL
(AAFZ) STEEL, STAINLESS
SHAFT THREAD CLASS
(AKAN) 2A
ELECTRICAL ERROR ANGULAR RANGE IN MINUTES
(AJVL) -8.0/+8.0

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