The Test Stand,aircraft Engine, cataloged under National Stock Number 4920-00-997-1958, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-00-997-1958 |
| Item Name | Test Stand,aircraft Engine |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| Engine Model Tested | T76 TURBOPROP |
| Supplementary Features | POWER REQUIRED-PNEUMATIC-110LBS PER MIN, 35PSIG, 450 DEG F; ELECTRICAL-220VAC 3 PHASE, 60HZ 4 WIRE; 115VAC SINGLE PHASE, 400HZ;28VDC REGULATED; TEST STAND C/O TRAILER CHASSIS, CONTROL CAB, ENGINE MOUNTING PEDESTAL, CRANE ASSY, FUEL SUPPLY SYSTEM, NEGATIVE TORQUE SENSING SYSTEM, HOSES AND ACCESSORIES VDC |
| Reference Data and Literature | 33D4-6-317-1 |
| Cubic Measure | 131432.2916 CUBIC FEET |
| Functional Description | TEST STAND PROVIDES CONTROLS AND INSTRUMENTATION NECESSARY TO CHECK ENGINE PERFORMANCE UNDER VARIABLE LOAD AND POWER SETTINGS |
| Test Type for Which Designed | OPERATIONAL CHECKOUT OF T76 TURBOPROP ENGINE FOLLOWING IN QEC (QUICK ENGINE CHANGE) CONFIGURATION FOLLOWING FIELD MAINTENANCE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 285270-1-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4920-00-997-1958 is a Test Stand,aircraft Engine, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-00-997-1958: Engine Model Tested: T76 TURBOPROP; Supplementary Features: POWER REQUIRED-PNEUMATIC-110LBS PER MIN, 35PSIG, 450 DEG F; ELECTRICAL-220VAC 3 PHASE, 60HZ 4 WIRE; 115VAC SINGLE PHASE, 400HZ;28VDC REGULATED; TEST STAND C/O TRAILER CHASSIS, CONTROL CAB, ENGINE MOUNTING PEDESTAL, CRANE ASSY, FUEL SUPPLY SYSTEM, NEGATIVE TORQUE SENSING SYSTEM, HOSES AND ACCESSORIES VDC; Reference Data and Literature: 33D4-6-317-1; Special Features: MATERIAL ALUMINUM ALLOY; 103 IN. H, 175 IN. L, 87.5 IN. W; GROUND CLEARANCE 13 IN., WEIGHT 5800 LBS; CAB LENGTH, WIDTH, HEIGTH-76 X 65 X 72; TIRES 6.00 X 9, 10 PLY, 100 PSI; C/O A TRAILER CHASSIS, CONTROL CAB, ENGINE MOUNTING PEDESTAL, CRANE ASSEMBLY, FUEL SUPPLY SYSTEM, NEGATIVE TORQUE SENSING SYSTEM, AND INTERCONNECTING HOSES, CABLES AND TEST INSTALLATION ACCESSORIES LBS. 6 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.
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.