The Heat Exchanger, cataloged under National Stock Number 5999-01-131-8763, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-131-8763 |
| Item Name | Heat Exchanger |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL ALUMINUM ALLOY PER QQ-A-250/11,HEAT TREATED AND ANODIZED; CONSISTS OF 1 HOLDER PART NO. 521-0189-002,3 FINS PART NO. 521-0307-001,1 PANEL PART NO. 521-0173-005; LENGTH 13.438 IN. IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | Y |
| Reference | Meaning |
|---|---|
| 69839-201-11 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5999-01-131-8763 is a Heat Exchanger, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
Key specifications for 5999-01-131-8763: General Characteristics Item Description: MATERIAL ALUMINUM ALLOY PER QQ-A-250/11,HEAT TREATED AND ANODIZED; CONSISTS OF 1 HOLDER PART NO. 521-0189-002,3 FINS PART NO. 521-0307-001,1 PANEL PART NO. 521-0173-005; LENGTH 13.438 IN. IN; End Item Identification: F111D/FB-111. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5999-01-131-8763 has DEMIL Code B. 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.