The Heat Exchanger Assembly, cataloged under National Stock Number 5821-01-159-9044, 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 Northrop Grumman Corp Electronic Systems Defensive System Div. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5821-01-159-9044 |
| Primary Part Number | 339520 |
| Item Name | Heat Exchanger Assembly |
| FSC / FSG | 5821 / 58 — Radio and Television Communication Equipment, Airborne |
| Manufacturer | Northrop Grumman Corp Electronic Systems Defensive System Div |
| Status | ACTIVE |
| General Characteristics Item Description | 86.50 CU IN.; 1 LBS; 7.125 IN. LG.; 5.250 IN. W; 2.312 IN. H LBS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 339520 PRIMARY | Northrop Grumman Corp Electronic Systems Defensive System Div (USA) |
NSN 5821-01-159-9044 is a Heat Exchanger Assembly, manufactured by Northrop Grumman Corp Electronic Systems Defensive System Div, classified under FSC 5821, Radio and Television Communication Equipment, Airborne. Status: active.
NSN 5821-01-159-9044 has 1 manufacturer part number on file: 339520 (Northrop Grumman Corp Electronic Systems Defensive System Div).
Key specifications for 339520: General Characteristics Item Description: 86.50 CU IN.; 1 LBS; 7.125 IN. LG.; 5.250 IN. W; 2.312 IN. H LBS; End Item Identification: MODEL F-14 ACFT. 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 5821-01-159-9044 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.