The Synchro,receiver-Transmitter, cataloged under National Stock Number 5990-01-331-7071, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ametek Technical & Industrial Products, Inc. Dba Tachtronic Instruments Division Div Ametek Technical and Industrial Products, Inc.. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-01-331-7071 |
| Primary Part Number | 23TRX1291 |
| Item Name | Synchro,receiver-Transmitter |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Ametek Technical & Industrial Products, Inc. Dba Tachtronic Instruments Division Div Ametek Technical and Industrial Products, Inc. |
| Status | ACTIVE |
| Body Size | 2323 |
| Shaft Type | ROUND, THREADED SINGLE SHAFTROUND, THREADED SINGLE SHAFT |
| Body Diameter | 1.9900 INCHES MAXIMUM1.9900 INCHES MAXIMUM IN |
| Flange Diameter | 2.2490 INCHES MINIMUM AND 2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM2.2500 INCHES MAXIMUM IN |
| Zss Impedance Magnitude in Ohms | 10.00 NOMINAL10.00 NOMINAL |
| Shaft Diameter | 0.2403 INCHES MINIMUM AND 0.2403 INCHES MINIMUM AND 0.2405 INCHES MAXIMUM SINGLE SHAFT0.2405 INCHES MAXIMUM SINGLE SHAFT IN |
| Length | 0.2930 INCHES NOMINAL SHOULDER0.2930 INCHES NOMINAL SHOULDER IN |
| Body Style | STANDARD ROUND DSTANDARD ROUND D |
| Flange Thickness | 0.2500 INCHES NOMINAL0.2500 INCHES NOMINAL IN |
| Torque Gradient Per Angular Deg | 0.120 INCH-OUNCES MINIMUM0.120 INCH-OUNCES MINIMUM IN |
| Rotor Input Electrical Power Rating | 5.6 WATTS MAXIMUM5.6 WATTS MAXIMUM |
| Shaft Thread Length | 0.3330 INCHES MINIMUM SINGLE SHAFT0.3330 INCHES MINIMUM SINGLE SHAFT IN |
| Aft of First Flange Diameter | 1.9985 INCHES MINIMUM AND 1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM1.9995 INCHES MAXIMUM IN |
| Phase Shift Angle in Deg | 11.000 INPUT TO OUTPUT MAXIMUM11.000 INPUT TO OUTPUT MAXIMUM |
| Mounting Surface to Terminal End Distance | 3.1600 INCHES MAXIMUM3.1600 INCHES MAXIMUM IN |
| Frequency in Hertz | 60.0 NOMINAL60.0 NOMINAL |
| Terminal Location | REARREAR |
| Rotor Input Voltage Rating in Volts | 115.0 NOMINAL115.0 NOMINAL |
| Shaft Length | 0.6660 INCHES MINIMUM AND 0.6660 INCHES MINIMUM AND 0.6860 INCHES MAXIMUM SINGLE SHAFT0.6860 INCHES MAXIMUM SINGLE SHAFT IN |
| Pilot Diameter | 0.5950 INCHES NOMINAL0.5950 INCHES NOMINAL IN |
| Second Shoulder Length | 0.1700 INCHES NOMINAL0.1700 INCHES NOMINAL IN |
| Maximum Fundamental Null Voltage in Millivolts Per Volt | 60.00 OUTPUT60.00 OUTPUT |
| Shoulder Diameter | 1.9850 INCHES MINIMUM AND 1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM1.9900 INCHES MAXIMUM IN |
| Shaft Nominal Thread Size | 0.250 INCHES SINGLE SHAFT0.250 INCHES SINGLE SHAFT IN |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 160.00160.00 |
| Receiver Error Angular Range in Minutes | -45.0 TO 45.0-45.0 TO 45.0 |
| Shaft Thread Direction | RIGHT-HAND SINGLE SHAFTRIGHT-HAND SINGLE SHAFT |
| Pilot Length | 0.0430 INCHES NOMINAL0.0430 INCHES NOMINAL IN |
| Shaft Thread Series Designator | UNF SINGLE SHAFTUNF SINGLE SHAFT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 23TRX1291 PRIMARY | Ametek Technical & Industrial Products, Inc. Dba Tachtronic Instruments Division Div Ametek Technical and Industrial Products, Inc. (USA) |
NSN 5990-01-331-7071 is a Synchro,receiver-Transmitter, manufactured by Ametek Technical & Industrial Products, Inc. Dba Tachtronic Instruments Division Div Ametek Technical and Industrial Products, Inc., classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-01-331-7071 has 1 manufacturer part number on file: 23TRX1291 (Ametek Technical & Industrial Products, Inc. Dba Tachtronic Instruments Division Div Ametek Technical and Industrial Products, Inc.).
Key specifications for 23TRX1291: Body Size: 2323; Shaft Type: ROUND, THREADED SINGLE SHAFTROUND, THREADED SINGLE SHAFT; Body Diameter: 1.9900 INCHES MAXIMUM1.9900 INCHES MAXIMUM IN; Flange Diameter: 2.2490 INCHES MINIMUM AND 2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM2.2500 INCHES MAXIMUM 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 5990-01-331-7071 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.