# NSN 4920-01-020-5393: Servo Assembly, Test Set, Modular

NSN 4920-01-020-5393 (also written 4920010205393; NIIN 01-020-5393) is a servo assembly, test set, modular in Federal Supply Class 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. 4 manufacturer part numbers from 4 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4920-01-020-5393 (4920010205393)
- NIIN: 01-020-5393 (010205393)
- Item name: SERVO ASSEMBLY,TEST SET,MODULAR
- Federal Supply Class: [FSC 4920 Aircraft Maintenance and Repair Shop Specialized Equipment](https://nsnexplorer.com/fsc/4920/)
- Federal Supply Group: [FSG 49](https://nsnexplorer.com/group/49/)
- Acquisition method suffix code: AMSC G: the government has a complete data package and the rights to use it. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABHP | OVERALL LENGTH | INCHES MAXIMUM 1.900 |
| ADAV | OVERALL DIAMETER | INCHES NOMINAL 0.750 |
| AGAV | END ITEM IDENTIFICATION | A-10 THUNDERBOLT II,AIRCRAFT |
| FEAT | SPECIAL FEATURES | CASE MATERIAL SHALL BE STAINLESS STEEL; LEADS SHALL BE COMPRISED OF SYNTHETIC RESIN, INSULATED, AWG NUMBER 28 PER MIL-W-16878/4; WEIGHT SHALL BE 2.6OZ-MAXIMUM |
| MATT | MATERIAL | STEEL CORROSION RESISTING |
| PRPY | PROPRIETARY CHARACTERISTICS | PACS |
| SPCL | SPECIAL TEST FEATURES | MOTOR / GEARHEAD PARAMETERS: MOTOR ROTOR INERTIA: 1.0GM-CM(SQUARED) + OR - 15%; GEARHEAD OUTPUT SHAFT SPEED USING 5.5 VRMS CONTROL PHASE EXCITATION SHALL BE 6 + OR - 1 RPM; STALL TORQUE: 0.15" - OZ (NOMINAL); STARTING VOLTAGE: .32 VOLTS RMS MAXIMUM; MOTOR STATOR SHALL HAVE 6 POLES |
| SUPP | SUPPLEMENTARY FEATURES | ELECTRICAL PARAMETERS: FIX PHASE: 26 VOLTS RMS, 400HZ - NOMINAL, 2.5 WATTS - MAXIMUM; CONTROL PHASE: 16 VOLTS RMS 3.3 WATTS MAXIMUM, 300 MILLIAMPERES MAXIMUM; DIELECTRIC STRENGTH: 1 MILLIAMPERE LEAKAGE BETWEEN ALL LEADS AND CASE WITH 500, + OR - 25 VOLTS RMS, 60 HZ APPLIED; INSULATION STRENGTH: 100 MEGAOHMS - MINIMUM BETWEEN ALL LEADS AND CASE WITH 500 + OR - VDC APPLIED |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | MECHANICAL PARAMETERS; BACKLASH: 0.5 DEGREES MAXIMUM WITH 1" - OZ REVERSE GAGE LOAD; SHAFT END PLAY: .005" MAXIMUM WITH 16OZ REVERSE GAGE LOAD; SHAFT RADIAL PLAY: .0008" MAXIMUM WITH 3OX REVERSE GAG LOAD; SHAFT RUNOUT: .001 TIR |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 00030-2046 | 04274 | ROSEMOUNT INC DBA FISHER ROSEMOUNT SERVICE AND SUPPORT | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 00030-2046 | 59885 | ROSEMOUNT AEROSPACE INC DBA ROSEMOUNT AEROSPACE INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| DLAA-R0008-1000/2000 | 13873 | DLA AVIATION ENGINEERING DIV DEPARTMENT OF DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| DLAA-R0008-1000/2000 | 5DU40 | CZERO INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4920010205393&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4920010205393
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- All data is public U.S. government data; every row above links to its source record where one exists.

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