The Parts Kit,hydraulic Transmission, cataloged under National Stock Number 2520-01-504-1601, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-01-504-1601 |
| Primary Part Number | 29518440 |
| Item Name | Parts Kit,hydraulic Transmission |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Component Quantity | 3 |
| Document Type | PARTS CATALOG |
| End Item Source | 19207 |
| Component Document Page Number | 10-2.1 |
| Document Identification | GM 2000 ALLISON HD/B 500 SERIES ON-HIGHWAY TRANSMISSIONS PARTS CATALOG |
| Component Document Origin | INDUSTRIAL |
| End Item Name | TRUCK,CARGO |
| Nonsupply Items and Quantities | 73342 29505863 SEALRINGS 3 |
| Document Source | 73342 |
| 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 |
|---|---|
| 5HA251 | Oshkosh Defense Llc (USA) |
| 29518440 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 29518440 | Daimler Truck North America Llc (USA) |
| Reference | Meaning |
|---|---|
| 5H251 | C/1 Advisory reference — outside the item-of-supply concept Oshkosh Corp |
| 5HA251 | 5/9 Secondary reference Oshkosh Corp |
NSN 2520-01-504-1601 is a Parts Kit,hydraulic Transmission, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-504-1601 has 3 manufacturer part numbers on file: 5HA251 (Oshkosh Defense Llc), 29518440 (Allison Transmission Inc Dba Allison Transmission, Inc), 29518440 (Daimler Truck North America Llc).
Key specifications for 29518440: Component Quantity: 3; Document Type: PARTS CATALOG; End Item Source: 19207; Component Document Page Number: 10-2.1. 9 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.