The Cooler,fluid,industrial, cataloged under National Stock Number 4420-00-932-9884, 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 Lockheed Martin Corporation Div Rms. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-00-932-9884 |
| Primary Part Number | 7648756-1 |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Length | 16.190 INCHES NOMINAL IN |
| Style Designator | PLAIN U-TUBE |
| Material Document and Classification | MIL-T-17011 MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE TUBES |
| Tube Quantity | 10 |
| Tube Attachment Method | BRAZED BOTH ENDS |
| Material Thickness | 0.035 INCHES NOMINAL IN |
| Tubing Outside Diameter | 0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Height | 12.000 INCHES NOMINAL IN |
| Capacity Rating | 1.000 GALLONS PER HOUR |
| Width | 2.880 INCHES NOMINAL IN |
| Material | COPPER AND STEEL TUBES |
| 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 |
|---|---|
| 7648756-1 | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 7648756P001 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms |
| 7648756P001 | 3/9 Design control — primary reference Boyd Corporation (woburn) Inc |
| 7648756PT1REVF | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms |
NSN 4420-00-932-9884 is a Cooler,fluid,industrial, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-00-932-9884 has 1 manufacturer part number on file: 7648756-1 (Lockheed Martin Corporation Div Rms).
Key specifications for 7648756-1: Heat Transfer Method: INDIRECT; Length: 16.190 INCHES NOMINAL IN; Style Designator: PLAIN U-TUBE; Material Document and Classification: MIL-T-17011 MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE TUBES. 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.