The Synchro,transmitter, cataloged under National Stock Number 5990-00-070-8522, is classified within Federal Supply Class 5990 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 32 commercial cross-references from 18 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5990-00-070-8522 |
| Primary Part Number | M20708/45-01D |
| Item Name | Synchro,transmitter |
| FSC / FSG | 5990 / 59 — No Item Name Available |
| Manufacturer | Sae International Dba Sae International |
| Status | CANCELLED |
| Transformation Ratio | 0.783 ROTOR TO STATOR NOMINAL |
| Shaft Thread Series Designator | UNF SINGLE SHAFT |
| Zro Impedance Magnitude in Ohms | 470.00 MINIMUM AND 580.00 MAXIMUM |
| Rotor Input Electrical Power Rating | 1.7 WATTS NOMINAL |
| Electrical Error Angular Range in Minutes | -6.0 TO 6.0 |
| Shaft Diameter | 0.2403 INCHES MINIMUM AND 0.2405 INCHES MAXIMUM SINGLE SHAFT IN |
| Shaft Thread Class | 2A SINGLE SHAFT A |
| Terminal Location | REAR |
| Rotor Input Current Rating | 245.0 MILLIAMPERES MAXIMUM |
| Zro Impedance Angle in Deg | 84.00 MINIMUM AND 87.50 MAXIMUM |
| Body Material | STEEL CORROSION RESISTING |
| Specification/standard Data | 81349-MIL-S-20708/45 GOVERNMENT SPECIFICATION |
| Zss Impedance Angle in Deg | 42.00 MINIMUM AND 47.00 MAXIMUM |
| Maximum Temp Rise | 20.0 CELSIUS DEGC |
| Phase Shift Angle in Deg | 1.000 INPUT TO OUTPUT NOMINAL |
| Maximum Fundamental Null Voltage in Millivolts Per Volt | 32.00 OUTPUT |
| Zss Impedance Magnitude in Ohms | 21.60 MINIMUM AND 26.00 MAXIMUM |
| Mounting Surface to Terminal End Distance | 4.2990 INCHES NOMINAL IN |
| Test Data Document | 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.). |
| Flange Thickness | 0.2500 INCHES NOMINAL IN |
| Body Diameter | 1.9900 INCHES MAXIMUM IN |
| Body Style | STANDARD ROUND D |
| Second Shoulder Diameter | 1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM IN |
| Shoulder Diameter | 1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN |
| Pilot Diameter | 0.5950 INCHES NOMINAL IN |
| Second Shoulder Length | 0.1700 INCHES NOMINAL IN |
| Flange Diameter | 2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN |
| Length | 0.2500 INCHES NOMINAL SHOULDER IN |
| Shaft Length | 0.7190 INCHES NOMINAL SINGLE SHAFT IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| M20708/45-01 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-S-20708/45 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| SAE-AS20708/45 | Sae International Dba Sae International (USA) |
| 23M1H1Q | Muirhead Aerospace Ltd (GBR) |
| 76-00915-00 | Sal Navigation Ab (SWE) |
| 069732130 | Elac Sonar Gmbh (DEU) |
| AS20708/45 | Sae Customer Service Dept 2045 (USA) |
| 737834-14 | L3 Technologies, Inc. Div Communication Systems-East (USA) |
| S0C4010 | L3 Technologies, Inc. (USA) |
| WD6368ITEM15 | I-T-E Imperial Corp Subsidiary of Gould Inc Atlanta Marine Dept (USA) |
| WD6368ITEM15 | L3 Technologies, Inc. (USA) |
| 23CX4A | Sal Navigation Ab (SWE) |
| M20708/45-01D PRIMARY | Sae International Dba Sae International (USA) |
| VTSN23-64-N2/23CX4D | L3 Technologies, Inc. (USA) |
| S0C4010 | I-T-E Imperial Corp Subsidiary of Gould Inc Atlanta Marine Dept (USA) |
| VCX23-4N3 | General Dynamics Motion Control Llc (USA) |
| D10760 | Northrop Grumman Systems Corporation (USA) |
| M20708/45D-001 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 23CX4D | Joint Electronics Type Designation System (USA) |
| 397-001-023 | L3harris Interstate Electronics Corporation (USA) |
NSN 5990-00-070-8522 is a Synchro,transmitter, manufactured by Sae International Dba Sae International, classified under FSC 5990 (No Item Name Available). Status: cancelled.
NSN 5990-00-070-8522 has 32 cross-referenced part numbers: M20708/45-01 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-S-20708/45 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), SAE-AS20708/45 (Sae International Dba Sae International), 23M1H1Q (Muirhead Aerospace Ltd), 76-00915-00 (Sal Navigation Ab) and 27 more.
There are 4 known substitutes for 5990-00-070-8522: 5963-00-449-6288, 5990-00-677-6489, 5990-00-756-2555 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for M20708/45-01D: Transformation Ratio: 0.783 ROTOR TO STATOR NOMINAL; Shaft Thread Series Designator: UNF SINGLE SHAFT; Zro Impedance Magnitude in Ohms: 470.00 MINIMUM AND 580.00 MAXIMUM; Rotor Input Electrical Power Rating: 1.7 WATTS NOMINAL. 30 total characteristics are documented in the Federal Logistics Information System.
NSN 5990-00-070-8522 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.