The Synchro,differential Transmitter, cataloged under National Stock Number 5990-01-112-5281, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-01-112-5281 |
| Primary Part Number | 737099-2 |
| Item Name | Synchro,differential Transmitter |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Body Size | 11 |
| Shaft Type | ROUND, SLOTTED SINGLE SHAFT |
| Flange Diameter | 1.0590 INCHES MINIMUM AND 1.0650 INCHES MAXIMUM IN |
| Undercut Width | 0.0570 INCHES MINIMUM IN |
| Shaft Diameter | 0.1195 INCHES MINIMUM AND 0.1205 INCHES MAXIMUM SINGLE SHAFT IN |
| Undercut Diameter | 0.9680 INCHES MAXIMUM IN |
| Length | 0.0590 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM SHOULDER IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | STANDARD ROUND C |
| Shaft Radial Play Determining Weight | 4.0 OUNCES OZ |
| Flange Thickness | 0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN |
| Shaft Maximum Runout | 0.0010 INCHES IN |
| Stator Input Current Rating | 131.0 MILLIAMPERES NOMINAL |
| Phase Shift Angle in Deg | 7.000 INPUT TO OUTPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 1.6870 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 14.00 NOMINAL |
| Stator Input Electrical Power Rating | 400.0 MILLIWATTS MAXIMUM |
| Plus J Zso Reactance in Ohms | 72.00 NOMINAL |
| Terminal Location | REAR |
| Shaft End Play Determining Weight | 8.0 OUNCES OZ |
| Shaft Maximum Radial Play | 0.0005 INCHES IN |
| Shaft Length | 0.4690 INCHES MINIMUM AND 0.5310 INCHES MAXIMUM SINGLE SHAFT IN |
| Body Material | STEEL CORROSION RESISTING |
| Pilot Diameter | 0.6250 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.9995 INCHES MINIMUM AND 1.0005 INCHES MAXIMUM IN |
| Stator Input Voltage Rating in Volts | 11.8 NOMINAL |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 40.00 |
| Shaft Slot Width | 0.0310 INCHES NOMINAL SINGLE SHAFT IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 737099-2 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| AY-979-T1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| AY-979-T1 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
| CDH-11-BN-2/A164 | 5/2 Secondary reference U.S. Government activity |
NSN 5990-01-112-5281 is a Synchro,differential Transmitter, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-01-112-5281 has 1 manufacturer part number on file: 737099-2 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 737099-2: Body Size: 11; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 1.0590 INCHES MINIMUM AND 1.0650 INCHES MAXIMUM IN; Undercut Width: 0.0570 INCHES MINIMUM IN. 29 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5990-01-112-5281 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.