The Synchro,transmitter, cataloged under National Stock Number 5990-00-326-2172, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-326-2172 |
| Item Name | Synchro,transmitter |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| Body Size | 11 |
| Shaft Type | ROUND, SLOTTED, UNDERCUT SINGLE SHAFT |
| Flange Diameter | 1.0590 INCHES MINIMUM AND 1.0620 INCHES MAXIMUM IN |
| Undercut Width | 0.0500 INCHES NOMINAL IN |
| Shaft Diameter | 0.1195 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 9.10 NOMINAL |
| Undercut Diameter | 0.9750 INCHES NOMINAL IN |
| Length | 0.0590 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM SHOULDER IN |
| Body Style | STANDARD ROUND C |
| Flange Thickness | 0.0900 INCHES MINIMUM AND 0.0960 INCHES MAXIMUM IN |
| Torque Gradient Per Angular Deg | 5760.0 MILLIMETER-MILLIGRAMS MINIMUM MM |
| Rotor Input Electrical Power Rating | 1.0 WATTS MAXIMUM |
| Alignment Hole Bolt Circle Diameter | 0.8150 INCHES MAXIMUM IN |
| Phase Shift Angle in Deg | 4.400 INPUT TO OUTPUT NOMINAL |
| Shaft Tip Length | 0.0750 INCHES NOMINAL SINGLE SHAFT IN |
| Mounting Surface to Terminal End Distance | 1.8810 INCHES MINIMUM AND 1.8850 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 16.20 NOMINAL |
| Plus J Zso Reactance in Ohms | 17.60 NOMINAL |
| Shaft Undercut Width | 0.0200 INCHES NOMINAL SINGLE SHAFT IN |
| Zrs Resistance in Ohms | 22.50 NOMINAL |
| Terminal Location | REAR |
| Rotor Input Voltage Rating in Volts | 26.0 NOMINAL |
| Alignment Hole Quantity | 4 |
| Shaft Length | 0.4270 INCHES MINIMUM AND 0.4470 INCHES MAXIMUM SINGLE SHAFT IN |
| Body Material | STEEL CORROSION RESISTING |
| Pilot Diameter | 0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Shaft Undercut Diameter | 0.0960 INCHES NOMINAL SINGLE SHAFT IN |
| Shoulder Diameter | 0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 3563110-0175 | 5/2 Secondary reference U.S. Government activity |
| 2277181-0001 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
| 3563110-0175 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
| 2277181-0001 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5990-00-326-2172 is a Synchro,transmitter, classified under FSC 5990, Synchros and Resolvers. Status: active.
Key specifications for 5990-00-326-2172: Body Size: 11; Shaft Type: ROUND, SLOTTED, UNDERCUT SINGLE SHAFT; Flange Diameter: 1.0590 INCHES MINIMUM AND 1.0620 INCHES MAXIMUM IN; Undercut Width: 0.0500 INCHES NOMINAL 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 5990-00-326-2172 has DEMIL Code D. 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.