The Power Distribution-Reference Sig, cataloged under National Stock Number 4920-01-055-2165, 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 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4920-01-055-2165 |
| Item Name | Power Distribution-Reference Sig |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| End Item Source | 94580 |
| Unpackaged Unit Length | 20.000 INCHES NOMINAL IN |
| Supplementary Features | COMPANY ITEM NAME-POWER DISTRIBUTION AND CONTROL TESTER |
| Reference Data and Literature | SERD NO. 3502 |
| Unpackaged Unit Width | 20.000 INCHES NOMINAL IN |
| End Item Name | TEST STATION |
| Unpackaged Unit Height | 4.500 INCHES NOMINAL IN |
| Functional Description | USED TO PROVIDE THE MEANS TO VARY INPUT VOLTAGES, TO CHECK FOR CORRECT PHASE SEQUENCE, TO SIMULATE INCORRECT PHASE SEQUENCE, TO SIMULATE OVER TEMPERATURE SIGNAL, AND TO PROVIDE ON/OFF CONTROL CIRCUITS TO REPLACE DEYBOARD FUNCTION OF THE TEST STATION |
| 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 |
|---|---|
| UG2903AA01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4920-01-055-2165 is a Power Distribution-Reference Sig, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-01-055-2165: End Item Source: 94580; Unpackaged Unit Length: 20.000 INCHES NOMINAL IN; Supplementary Features: COMPANY ITEM NAME-POWER DISTRIBUTION AND CONTROL TESTER; Reference Data and Literature: SERD NO. 3502. 8 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.