The Test Stand,hydraulic System Comp, cataloged under National Stock Number 4920-01-473-2857, 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 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4920-01-473-2857 |
| Item Name | Test Stand,hydraulic System Comp |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| Supplementary Features | COMPANY ITEM NAME-UPLOCK DRIVE UNIT TEST STAND; 144.000 IN. L, 120.000 IN. W, 48.000 IN. H IN |
| Reference Data and Literature | SERD 2633 |
| Functional Description | USED TO FUNCTIONALLY TEST THE UPLOCK DRIVE UNIT, WHICH ASSISTS IN OPENING AND CLOSING THE WEAPONS BAY DOORS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL C — Remove/Demil Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AGETBD-D183 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4920-01-473-2857 is a Test Stand,hydraulic System Comp, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-01-473-2857: Supplementary Features: COMPANY ITEM NAME-UPLOCK DRIVE UNIT TEST STAND; 144.000 IN. L, 120.000 IN. W, 48.000 IN. H IN; Reference Data and Literature: SERD 2633; Special Features: STAINLESS STEEL; C/O HYDRAULIC MOTOR WHICH IS COUPLED TO INPUT TORQUE SENSOR, GAUGES, RECORDERS, AND CONTROLS WHICH TEST BACKLASH,MOTION,AND TRAVEL; Functional Description: USED TO FUNCTIONALLY TEST THE UPLOCK DRIVE UNIT, WHICH ASSISTS IN OPENING AND CLOSING THE WEAPONS BAY DOORS. 3 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 4920-01-473-2857 has DEMIL Code C. 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.