The Cooler,fluid,transmission, cataloged under National Stock Number 2520-01-088-8377, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Long Mfg Ltd. Government technical data includes 4 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-01-088-8377 |
| Primary Part Number | 703-4588 |
| Item Name | Cooler,fluid,transmission |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Long Mfg Ltd |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Length | 11.000 INCHES NOMINAL IN |
| Height | 4.530 INCHES NOMINAL IN |
| Thickness | 1.600 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 703-4588 | Long Mfg Ltd (CAN) |
| Reference | Meaning |
|---|---|
| 703-4070-1 | 5/9 Secondary reference Long Mfg Ltd |
| 703-4283 | 3/9 Design control — primary reference Dresser Canada Incwayne Pump Div |
| MD207-20086 | 5/9 Secondary reference Am General Llc |
| B7B | 5/9 Secondary reference Transtar Industries, Inc. |
NSN 2520-01-088-8377 is a Cooler,fluid,transmission, manufactured by Long Mfg Ltd, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-088-8377 has 1 manufacturer part number on file: 703-4588 (Long Mfg Ltd).
Key specifications for 703-4588: Heat Transfer Method: INDIRECT; Length: 11.000 INCHES NOMINAL IN; Height: 4.530 INCHES NOMINAL IN; Special Features: INLET AND OUTLET TUBES 0.500 IN.OD BY 0.960 IN.LG IN. 4 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.