The Test Set,aircraft Engine, cataloged under National Stock Number 4920-01-155-4687, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Cfm International Inc Dba Cfm International. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-155-4687 |
| Primary Part Number | 856A1214P03 |
| Item Name | Test Set,aircraft Engine |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Cfm International Inc Dba Cfm International |
| Status | ACTIVE |
| Phase | SINGLE |
| Length | 21.000 INCHES NOMINAL IN |
| AC Voltage Rating | 115.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Reference Data and Literature | T.O. 33DA72-8-1;SERD 3851 |
| Electrical Power Source Relationship | OPERATING |
| Height | 8.000 INCHES NOMINAL IN |
| Functional Description | THIS INDICATOR AND CABLE SET IS USED WITH 856A1194 AND 856A2001 TO DISPLAY THE STAGE 1 COMPRESSOR VANE'S AERODYNAMIC POSITION (BETA ANGLE) AND THE CORE ENGINE SPEED (N2) INDEPENDENT OF THE AIRCRAFT WIRING |
| Enclosure Feature | SINGLE ITEM W/CARRYING CASE |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM LOCATION NOT OTHERWISE SPECIFIED |
| Width | 17.000 INCHES NOMINAL IN |
| Test Type for Which Designed | POSITION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 856A1214P03 PRIMARY | Cfm International Inc Dba Cfm International (USA) |
| Reference | Meaning |
|---|---|
| 856A1214P02 | 5/9 Secondary reference Cfm International Inc Dba Cfm International |
| 856A1214P01 | 5/9 Secondary reference Cfm International Inc Dba Cfm International |
NSN 4920-01-155-4687 is a Test Set,aircraft Engine, manufactured by Cfm International Inc Dba Cfm International, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-155-4687 has 1 manufacturer part number on file: 856A1214P03 (Cfm International Inc Dba Cfm International).
Key specifications for 856A1214P03: Phase: SINGLE; Length: 21.000 INCHES NOMINAL IN; AC Voltage Rating: 115.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED; Reference Data and Literature: T.O. 33DA72-8-1;SERD 3851. 11 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.