The Test Set,aircraft Engine, cataloged under National Stock Number 4920-00-693-5901, 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 Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-00-693-5901 |
| Primary Part Number | 253556 |
| Item Name | Test Set,aircraft Engine |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Reference Data and Literature | T.O. 33D4-6-20-4; T.O. 33D2-3-21-1 |
| Entry Date | 90-04-24 |
| Functional Description | USED FOR MEASUREMENT OF TURBINE UNIT SPEEDS,TEMPERATURE,PRESSURES,OUTPUT FREQUENCIES,AND ELECTRICAL CIRCUIT PARAMETERS |
| 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 |
|---|---|
| 253556 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 253556 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
NSN 4920-00-693-5901 is a Test Set,aircraft Engine, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-693-5901 has 1 manufacturer part number on file: 253556 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for 253556: Reference Data and Literature: T.O. 33D4-6-20-4; T.O. 33D2-3-21-1; Entry Date: 90-04-24; Functional Description: USED FOR MEASUREMENT OF TURBINE UNIT SPEEDS,TEMPERATURE,PRESSURES,OUTPUT FREQUENCIES,AND ELECTRICAL CIRCUIT PARAMETERS. 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.
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.