The Synchro,differential Transmitter, cataloged under National Stock Number 5990-00-644-0090, 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 L3harris Technologies, Inc.. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5990-00-644-0090 |
| Primary Part Number | 2136834G001 |
| Item Name | Synchro,differential Transmitter |
| FSC / FSG | 5990 / 59 — No Item Name Available |
| Manufacturer | L3harris Technologies, Inc. |
| Status | CANCELLED |
| Second Shoulder Length | 0.0250 INCHES NOMINAL IN |
| Body Diameter | 2.2300 INCHES NOMINAL IN |
| Flange Diameter | 2.2480 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN |
| Flange Thickness | 0.2500 INCHES NOMINAL IN |
| Pilot Diameter | 1.0625 INCHES NOMINAL IN |
| Body Style | STANDARD ROUND, REAR MOUNTING FLANGE |
| Shoulder Diameter | 1.2500 INCHES NOMINAL IN |
| Second Shoulder Diameter | 1.9500 INCHES NOMINAL IN |
| Length | 0.0550 INCHES NOMINAL SHOULDER IN |
| Shaft Undercut Diameter | 0.0100 INCHES NOMINAL SINGLE SHAFT IN |
| Terminal Type and Quantity | 6 SCREW |
| Electrical Error Angular Range in Minutes | -18.0 TO 18.0 |
| Body Material | ALUMINUM |
| Shaft Tapered End Minor Diameter | 0.0200 INCHES NOMINAL SINGLE SHAFT IN |
| Shaft Tip Length | 0.1500 INCHES NOMINAL SINGLE SHAFT IN |
| Stator Input Voltage Rating in Volts | 115.0 NOMINAL |
| Maximum Temp Rise | 50.0 CELSIUS DEGC |
| Alignment Hole Bolt Circle Diameter | 0.8440 INCHES NOMINAL IN |
| Shaft Taper Angle in Deg | 0.021 SINGLE SHAFT |
| Pilot Length | 0.1250 INCHES NOMINAL IN |
| Shaft Nominal Thread Size | 0.112 INCHES SINGLE SHAFT IN |
| Second Shoulder Face to Rear Flange Distance | 0.0450 INCHES NOMINAL IN |
| Torque Gradient Per Angular Deg | 0.035 INCH-OUNCES MINIMUM IN |
| Shaft Type | ROUND, TAPERED, THREADED, UNDERCUT SINGLE SHAFT |
| Shaft Thread Series Designator | UNF SINGLE SHAFT |
| Shaft Taper Length | 0.1840 INCHES NOMINAL SINGLE SHAFT IN |
| Body Size | 23 |
| Frequency in Hertz | 60.0 NOMINAL |
| Transformation Ratio | 0.774 ROTOR TO STATOR NOMINAL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2136834G001 | L3harris Technologies, Inc. (USA) |
| 950509 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 951184 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 1HDG | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| SK139537 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 213422PC1 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 1HDGMK13 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-S-2335 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 561790PC5 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| MS1HDGMK13 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| VTDX22-39-6A | General Dynamics Motion Control Llc (USA) |
| 561790-5 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| SK273120 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 950512 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 2136834G1 | L3harris Technologies, Inc. (USA) |
NSN 5990-00-644-0090 is a Synchro,differential Transmitter, manufactured by L3harris Technologies, Inc., classified under FSC 5990 (No Item Name Available). Status: cancelled.
NSN 5990-00-644-0090 has 15 cross-referenced part numbers: 2136834G001 (L3harris Technologies, Inc.), 950509 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 951184 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 1HDG (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), SK139537 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier) and 10 more.
There are 12 known substitutes for 5990-00-644-0090: 5990-00-268-9068, 5990-00-268-9074, 5990-00-268-9075 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2136834G001: Second Shoulder Length: 0.0250 INCHES NOMINAL IN; Body Diameter: 2.2300 INCHES NOMINAL IN; Flange Diameter: 2.2480 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN; Flange Thickness: 0.2500 INCHES NOMINAL IN. 30 total characteristics are documented in the Federal Logistics Information System.
NSN 5990-00-644-0090 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.