Product Details | RECEIVER-TRANSMITTER SYNCHRO

5990-00-997-5237 A synchro having a dual purpose. It may be used in applications requiring either a receiver or transmitter. For synchros having a single purpose, see SYNCHRO, RECEIVER and SYNCHRO, TRANSMITTER.

Part Alternates: M20708/32-001, M20708/32-01A, M2070832001, M207083201A, M2070832E001, M20708-32E001, MIL-S-20708/32, MILS2070832, 1.793485, 1793485, 18TRX4A, 27719, 4509040983, 450904-0983, 674761, 5990-00-997-5237, 00-997-5237, 5990009975237, 009975237

Electrical and Electronic Equipment Components | Synchros and Resolvers

Supply Group (FSG) NSN Assign. NIIN
59 18 NOV 1966 00-997-5237

Drawings & Photos | NSN 5990-00-997-5237


Demand History | NSN 5990-00-997-5237

Part Number Request Date QTY Origin
5990-00-997-5237 2023-09-257 13 DIBBS
5990-00-997-5237 2023-08-216 4 DIBBS
5990-00-997-5237 2023-06-166 9 DIBBS
5990-00-997-5237 2023-05-142 1 DIBBS
5990-00-997-5237 2023-05-128 1 DIBBS
5990-00-997-5237 2023-01-11 1 DIBBS
5990-00-997-5237 2021-03-67 1 DIBBS
5990-00-997-5237 2021-02-56 1 DIBBS
18TRX4A 2020-10-290 1 LT
5990-00-997-5237 2019-09-273 9 DIBBS
5990-00-997-5237 2018-04-95 9 DIBBS
5990-00-997-5237 2018-03-84 9 DIBBS
5990-00-997-5237 2013-11-323 8 DIBBS
5990-00-997-5237 2013-03-78 8 DIBBS
5990-00-997-5237 2012-12-341 15 DIBBS
18TRX4A 2012-11-310 1 MY
5990-00-997-5237 2012-10-278 9 DIBBS
5990-00-997-5237 2012-08-215 8 DIBBS
5990-00-997-5237 2011-05-132 1 EC
5990-00-997-5237 2010-10-301 9 DIBBS
5990-00-997-5237 2010-10-287 9 DIBBS
5990-00-997-5237 2010-09-257 9 DIBBS
5990-00-997-5237 2010-08-225 3 DIBBS
5990-00-997-5237 2010-01-22 1 Spain
5990-00-997-5237 2009-12-343 2 US
18TRX4A 2009-09-257 2 BG
5990-00-997-5237 2009-09-257 2 BG
5990-00-997-5237 2007-02-59 14 DIBBS

Cross Reference | NSN 5990-00-997-5237

Part Number Cage Code Manufacturer
1.793485 D2865 RAYTHEON ANSCHUETZ GMBH DBA RAYTHEON ELECTRICS GMBH
18TRX4A 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
18TRX4A C0689 CONSILIUM GMBH
27719 09958 J RICHARD WEGGEL
450904-0983 D4856 NORTHROP GRUMMAN LITEF GMBH DBA LITEF
674761 56232 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
M20708-32E001 56232 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
M20708/32-001 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
M20708/32-01A 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MIL-S-20708/32 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 5990-00-997-5237

Characteristic Specifications
BODY SIZE 18
ROTOR INPUT VOLTAGE RATING IN VOLTS 115.0 NOMINAL
ROTOR INPUT CURRENT RATING 400.0 MILLIAMPERES MAXIMUM
ROTOR INPUT ELECTRICAL POWER RATING 4.0 WATTS MAXIMUM
FREQUENCY IN HERTZ 400.0 NOMINAL
ZSS IMPEDANCE MAGNITUDE IN OHMS 16.00 MINIMUM AND 21.00 MAXIMUM
ZSS IMPEDANCE ANGLE IN DEG 38.00 MINIMUM AND 45.00 MAXIMUM
TRANSFORMATION RATIO 0.783 STATOR TO ROTOR NOMINAL
PHASE SHIFT ANGLE IN DEG 4.000 INPUT TO OUTPUT MAXIMUM
MAXIMUM TEMP RISE 35.0 DEG CELSIUS
MAXIMUM FUNDAMENTAL NULL VOLTAGE IN MILLIVOLTS PER VOLT 50.00 OUTPUT
MAXIMUM TOTAL NULL VOLTAGE OUTPUT IN MILLIVOLTS PER VOLT 100.00
ELECTRICAL ERROR ANGULAR RANGE IN MINUTES -8.0 TO 8.0
RECEIVER ERROR ANGULAR RANGE IN MINUTES -45.0 TO 45.0
TORQUE GRADIENT PER ANGULAR DEG 0.100 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 3.0600 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 2.5200 INCHES NOMINAL
ALIGNMENT HOLE DEPTH 0.1250 INCHES MINIMUM
ALIGNMENT HOLE BOLT CIRCLE DIAMETER 1.2500 INCHES NOMINAL
ALIGNMENT HOLE QUANTITY 4
SHAFT TYPE SPLINE W/THREADS SINGLE SHAFT
SHAFT DIAMETER 0.1873 INCHES MINIMUM AND 0.1875 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 5 SCREW
TERMINAL LOCATION REAR
BODY MATERIAL STEEL, STAINLESS
TEST DATA DOCUMENT 81349-MIL-S-20708 SPECIFICATION
SPECIFICATION/STANDARD DATA 81349-MIL-S-20708/32 GOVERNMENT SPECIFICATION
III FRAGILITY FACTOR MODERATELY RUGGED

Restrictions/Controls & Freight Information | NSN 5990-00-997-5237

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:DMunitions List Item or Commerce Control List Item. Demilitarization required. Total destruction of the item and components so as to preclude restoration or repair to a usable condition by melting, cutting, tearing, scratching, crushing, breaking, punching, neutralizing, etc. (As an alternate, burial or deep water dumping may be used when coordinated with the DoD Demilitarization Program Office.)
Controlled Inventory Item Code:7NON-SENSITIVE (SRC-N/A) - UNCLASSIFIED AA&E: OR ITEMS ASSIGNED A DEMILITARIZATION CODE OTHER THAN A, B, Q, OR P FOR WHICH ANOTHER CIIC IS INAPPROPRIATE. (NOTE: THE LOSS, THEFT, UNLAWFUL DISPOSITION, AND/OR RECOVERY OF AN ITEM WITH CIIC 7 WILL BE INVESTIGATED IN ACCORDANCE WITH DOD-4000-25-2-M AND DOD 7200.14-R, VOLUME 12, CHAPTER 7).
Precious Metals Indicator Code:AItem 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: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 5990-00-997-5237

Category Code Description
Budget Code9 General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Materiel Management Aggregation CodeEHSX:ELECTRONIC COMPONENTS
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Price ValidationV The current standard price has been validated.
  • The item has been analyzed in conjunction with the Zero Overpricing Program and is in the accepted price range.
  • The item was procured under open competition and under the competitive arena the price is considered fair and reasonable.
  • ZOP or Standard price challenges are permissible but must be supported by adequate justification.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item Code7NON-SENSITIVE (SRC-N/A) - UNCLASSIFIED AA&E: OR ITEMS ASSIGNED A DEMILITARIZATION CODE OTHER THAN A, B, Q, OR P FOR WHICH ANOTHER CIIC IS INAPPROPRIATE. (NOTE: THE LOSS, THEFT, UNLAWFUL DISPOSITION, AND/OR RECOVERY OF AN ITEM WITH CIIC 7 WILL BE INVESTIGATED IN ACCORDANCE WITH DOD-4000-25-2-M AND DOD 7200.14-R, VOLUME 12, CHAPTER 7).
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
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 CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item Code7NON-SENSITIVE (SRC-N/A) - UNCLASSIFIED AA&E: OR ITEMS ASSIGNED A DEMILITARIZATION CODE OTHER THAN A, B, Q, OR P FOR WHICH ANOTHER CIIC IS INAPPROPRIATE. (NOTE: THE LOSS, THEFT, UNLAWFUL DISPOSITION, AND/OR RECOVERY OF AN ITEM WITH CIIC 7 WILL BE INVESTIGATED IN ACCORDANCE WITH DOD-4000-25-2-M AND DOD 7200.14-R, VOLUME 12, CHAPTER 7).
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each