The Transformer Assy, cataloged under National Stock Number 6620-00-906-9150, is classified within Federal Supply Class 6620 (Engine Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Honeywell International, Inc Div Aerospace-Tucson. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Transformer Assy |
| FSC / FSG | 6620 — Engine Instruments (FSG 66) |
| Manufacturers | Honeywell International, Inc Div Aerospace-Tucson (CAGE 64547) |
| Parameter | Value |
|---|---|
| NSN | 6620-00-906-9150 |
| Primary Part Number | 539457 |
| Item Name | Transformer Assy |
| FSC / FSG | 6620 / 66 — Engine Instruments |
| Manufacturer | Honeywell International, Inc Div Aerospace-Tucson |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 539457 PRIMARY | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| Reference | Meaning |
|---|---|
| 539457 | C/1 Advisory reference — outside the item-of-supply concept Honeywell International Inc. Div Aerospace - Torrance |
| 539457 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
NSN 6620-00-906-9150 is a Transformer Assy, manufactured by Honeywell International, Inc Div Aerospace-Tucson, classified under FSC 6620, Engine Instruments. Status: active.
NSN 6620-00-906-9150 has 1 manufacturer part number on file: 539457 (Honeywell International, Inc Div Aerospace-Tucson).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-481-5548. Verify interchangeability with system specifications before substitution.
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.