The Chassis Assembly, cataloged under National Stock Number 5821-01-044-1689, is classified within Federal Supply Class 5821 (Radio and Television Communication Equipment, Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5821-01-044-1689 |
| Primary Part Number | 777-0056-004 |
| Item Name | Chassis Assembly |
| FSC / FSG | 5821 / 58 — Radio and Television Communication Equipment, Airborne |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| General Characteristics Item Description | MODULATOR 1,AMPLIFIER ASSEMBLY,RF 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL C — Remove/Demil Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 777-0056-004 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 777-0056-004 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5821-01-044-1689 is a Chassis Assembly, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5821, Radio and Television Communication Equipment, Airborne. Status: active.
NSN 5821-01-044-1689 has 1 manufacturer part number on file: 777-0056-004 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 777-0056-004: General Characteristics Item Description: MODULATOR 1,AMPLIFIER ASSEMBLY,RF 1; End Item Identification: E-3A AWACS A. 1 specification is 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.
NSN 5821-01-044-1689 has DEMIL Code C. 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.