The Heater,fluid,industrial, cataloged under National Stock Number 4420-01-487-3082, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-487-3082 |
| Primary Part Number | 531-7016002 ASSY A4 |
| Item Name | Heater,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Length | 31.000 INCHES NOMINAL IN |
| Connection Type | FLANGED PIPE HEATED FLUID INLET |
| Connection Type | FLANGED PIPE HEATED FLUID OUTLET |
| Style Designator | STRAIGHT PLAIN TUBE CYLINDRICAL |
| Diameter | 14.180 INCHES NOMINAL IN |
| Material | COPPER ALLOY HOUSING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 531-7016002 ASSY A4 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7016002 | D/9 Drawing number reference only Naval Sea Systems Command |
| H655-1513 ASSY A4 | 5/9 Secondary reference U.S. Government activity |
| H655-1513A4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4420-01-487-3082 is a Heater,fluid,industrial, manufactured by Naval Sea Systems Command, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-487-3082 has 1 manufacturer part number on file: 531-7016002 ASSY A4 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4420-01-487-6677. Verify interchangeability with system specifications before substitution.
Key specifications for 531-7016002 ASSY A4: Length: 31.000 INCHES NOMINAL IN; Connection Type: FLANGED PIPE HEATED FLUID INLET; Connection Type: FLANGED PIPE HEATED FLUID OUTLET; Style Designator: STRAIGHT PLAIN TUBE CYLINDRICAL. 6 specifications are 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.
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.