The Test Set,pneumatic System Compon, cataloged under National Stock Number 4920-01-178-0330, 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3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-178-0330 |
| Item Name | Test Set,pneumatic System Compon |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| Functional Description | USED TO PERFORM PRESSURIZATION,PURGING AND LEAKAGE TEST OPERATIONS ON THE ATTACK RADAR AND TERRAIN FOLLOWING RADAR SYSTEMS AND THE COUNTERMEASURES RECEIVING SET; USED IN CONJUNTION WITH MODEL 117 ULTRASONIC TRANSLATOR FOR PERFORMANCE OF LEAKAGE TESTS--PROVIDES PRESSURE SUPPLY,CONTROLS,GAGES,FLOWMETERS,AND INTERCONNECTING HOSES TO OBTAIN DESIRED PRESSURIZATION AND FLOW MEASUREMENTS |
| Enclosure Feature | MULTIPLE ITEM W/CARRYING CASE |
| Test Type for Which Designed | ATTACK RADAT AND TERRAIN FOLLOWING RADAR SYSTEMS AND THE COUNTERMEASURES RECEIVING SET |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL C — Remove/Demil Key Points |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 12A6615-5 | 3/2 Design control — primary reference U.S. Government activity |
| 12A6615-5 | 5/9 Secondary reference Hughes Missile Systems Co San Diego |
NSN 4920-01-178-0330 is a Test Set,pneumatic System Compon, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-01-178-0330: Special Features: C/O REGULATED NITROGEN PRESSURE SUPPLY MOUNTED IN A PORTABLE ALUMINUM CHEST; A HOSE ASSY IS PROVIDED FOR CONNECTION OF TEST SET TO WAVE GUIDE UNDER TEST; NITROGEN SUPPLY CYLINDER IS PROVIDED WITH CHARGING VALVE; Functional Description: USED TO PERFORM PRESSURIZATION,PURGING AND LEAKAGE TEST OPERATIONS ON THE ATTACK RADAR AND TERRAIN FOLLOWING RADAR SYSTEMS AND THE COUNTERMEASURES RECEIVING SET; USED IN CONJUNTION WITH MODEL 117 ULTRASONIC TRANSLATOR FOR PERFORMANCE OF LEAKAGE TESTS--PROVIDES PRESSURE SUPPLY,CONTROLS,GAGES,FLOWMETERS,AND INTERCONNECTING HOSES TO OBTAIN DESIRED PRESSURIZATION AND FLOW MEASUREMENTS; Enclosure Feature: MULTIPLE ITEM W/CARRYING CASE; End Item Identification: F111 ACFT GROUND SUPPORT EQUIP. 3 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4920-01-178-0330 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.