The Range Step Subassem, cataloged under National Stock Number 5840-00-920-8554, is classified within Federal Supply Class 5840 (Radar Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Range Step Subassem |
| FSC / FSG | 5840 — Radar Equipment, Except Airborne (FSG 58) |
| Manufacturers | Northrop Grumman Systems Corporation (CAGE 21877) |
| Parameter | Value |
|---|---|
| NSN | 5840-00-920-8554 |
| Primary Part Number | 4400F0057 |
| Item Name | Range Step Subassem |
| FSC / FSG | 5840 / 58 — Radar Equipment, Except Airborne |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 4400F0057 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 4400F0057 | 5/2 Secondary reference U.S. Government activity |
| 4400F0057 | 5/9 Secondary reference U.S. Government activity |
NSN 5840-00-920-8554 is a Range Step Subassem, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5840, Radar Equipment, Except Airborne. Status: active.
NSN 5840-00-920-8554 has 1 manufacturer part number on file: 4400F0057 (Northrop Grumman Systems Corporation).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5840-00-920-8554 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.