The Heat Exchanger,fluid to Air, cataloged under National Stock Number 1615-01-555-4534, is classified within Federal Supply Class 1615 (Helicopter Rotor Blades, Drive Mechanisms and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Boyd Corporation (woburn) Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1615-01-555-4534 |
| Primary Part Number | PF7191G2 |
| Item Name | Heat Exchanger,fluid to Air |
| FSC / FSG | 1615 / 16 — Helicopter Rotor Blades, Drive Mechanisms and Components |
| Manufacturer | Boyd Corporation (woburn) Inc |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | PART NUMBER LISTED ON BELL SOURCE CONTROL DRAWING 449-380-007 IS INCORRECT. CORRECT VENDOR NUMBER IS PF7191G2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | V |
| Part Number | Manufacturer |
|---|---|
| PF7191G2 | Boyd Corporation (woburn) Inc (USA) |
| Reference | Meaning |
|---|---|
| PF7192G2 | 5/9 Secondary reference Boyd Corporation (woburn) Inc |
| 449-380-007-105 | 1/3 Source control — Government-approved source U.S. Government activity |
NSN 1615-01-555-4534 is a Heat Exchanger,fluid to Air, manufactured by Boyd Corporation (woburn) Inc, classified under FSC 1615, Helicopter Rotor Blades, Drive Mechanisms and Components. Status: active.
NSN 1615-01-555-4534 has 1 manufacturer part number on file: PF7191G2 (Boyd Corporation (woburn) Inc).
Key specifications for PF7191G2: Part Name Assigned by Controlling Agency: HEAT EXCHANGER ASSY- HYDRAULIC; End Item Identification: UH-1Y HUEY HELICOPTER; Reference Number Differentiating Characteristics: PART NUMBER LISTED ON BELL SOURCE CONTROL DRAWING 449-380-007 IS INCORRECT. CORRECT VENDOR NUMBER IS PF7191G2. 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 1615-01-555-4534 has DEMIL Code Q. 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.