The Bonnet,fluid Cooler,industrial, cataloged under National Stock Number 4420-01-252-4811, 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 Fluid Handling Llc. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4420-01-252-4811 |
| Primary Part Number | 3-136-2-06-899-03 |
| Item Name | Bonnet,fluid Cooler,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Fluid Handling Llc |
| Status | ACTIVE |
| Length | 3.438 INCHES NOMINAL3.438 INCHES NOMINAL IN |
| Style Designator | END BONNET |
| Diameter | 8.250 INCHES NOMINAL8.250 INCHES NOMINAL IN |
| Flow Type | TWO PASSTWO PASS |
| Material | COPPER AND NICKEL ALLOY OVERALL |
| 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 |
|---|---|
| 3-136-2-06-899-03 PRIMARY | Fluid Handling Llc (USA) |
| Reference | Meaning |
|---|---|
| 3-136-2-06-899-03 | 5/9 Secondary reference Itt Corporation Dba Itt Standard |
NSN 4420-01-252-4811 is a Bonnet,fluid Cooler,industrial, manufactured by Fluid Handling Llc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-252-4811 has 1 manufacturer part number on file: 3-136-2-06-899-03 (Fluid Handling Llc).
Key specifications for 3-136-2-06-899-03: Length: 3.438 INCHES NOMINAL3.438 INCHES NOMINAL IN; Style Designator: END BONNET; Diameter: 8.250 INCHES NOMINAL8.250 INCHES NOMINAL IN; Flow Type: TWO PASSTWO PASS. 5 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.