The Plug,test,auxiliary Power Unit C, cataloged under National Stock Number 4920-01-206-9068, 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 2 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-206-9068 |
| Item Name | Plug,test,auxiliary Power Unit C |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | 1.750 IN. LG;0.500 IN. O/A DIA;ALUMINUM ALLOY IN |
| Functional Description | REQUIRED TO LOCK OUT RELIEF VALVE DURING PROOF TESTING AND LEAK ISOLATION TESTING AT INTERMEDIATE LEVEL REPAIR OR DEPOT LEVEL OVERHAUL;REPLACES THERMAL RELIEF VALVE,(3831210-101) |
| 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 |
|---|---|
| R-TBD-2921 | 5/9 Secondary reference The Boeing Company Div Legacy Am&m |
| 3858009-101 | 5/9 Secondary reference U.S. Government activity |
| F65-0-3235 | 5/9 Secondary reference U.S. Government activity |
| 3858009-101 | 5/1 Secondary reference Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations |
| 3858009-101 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4920-01-206-9068 is a Plug,test,auxiliary Power Unit C, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-01-206-9068: General Characteristics Item Description: 1.750 IN. LG;0.500 IN. O/A DIA;ALUMINUM ALLOY IN; Functional Description: REQUIRED TO LOCK OUT RELIEF VALVE DURING PROOF TESTING AND LEAK ISOLATION TESTING AT INTERMEDIATE LEVEL REPAIR OR DEPOT LEVEL OVERHAUL;REPLACES THERMAL RELIEF VALVE,(3831210-101); End Item Identification: B-1B ACFT AGE.. 2 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.