The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-131-8837, 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 Thermal Engineering International (usa) Inc.. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-131-8837 |
| Primary Part Number | 900-D-021 |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Thermal Engineering International (usa) Inc. |
| Status | ACTIVE |
| Core Frontal Area | 2090.0 SQUARE INCHES |
| Heat Transfer Method | INDIRECT |
| Length | 95.500 INCHES NOMINAL IN |
| Effective Heat Transfer Surface Area | 14.4 SQUARE FEET |
| Style Designator | UPRIGHT STRAIGHT FINNED TYPE |
| Diameter | 8.000 INCHES NOMINAL IN |
| Tube Quantity | 2 |
| Tube Attachment Method | EXPANDED BOTH ENDS |
| Height | 33.250 INCHES NOMINAL IN |
| Capacity Rating | 4920.0 GALLONS PER HOUR |
| Material | STEEL SHELL |
| Thickness | 9.500 INCHES NOMINAL IN |
| 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 |
|---|---|
| 900-D-021 PRIMARY | Thermal Engineering International (usa) Inc. (USA) |
| Reference | Meaning |
|---|---|
| 900-D-021 | 5/9 Secondary reference Thermal Engineering International Usa Inc |
NSN 4420-01-131-8837 is a Cooler,fluid,industrial, manufactured by Thermal Engineering International (usa) Inc., classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-131-8837 has 1 manufacturer part number on file: 900-D-021 (Thermal Engineering International (usa) Inc.).
Key specifications for 900-D-021: Core Frontal Area: 2090.0 SQUARE INCHES; Heat Transfer Method: INDIRECT; Length: 95.500 INCHES NOMINAL IN; Effective Heat Transfer Surface Area: 14.4 SQUARE FEET. 12 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.