# NSN 2520-01-503-0719: Piston, Clutch Shaft Assembly

NSN 2520-01-503-0719 (also written 2520015030719; NIIN 01-503-0719) is a piston, clutch shaft assembly in Federal Supply Class 2520, Vehicular Power Transmission Components. 4 manufacturer part numbers from 4 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 2520-01-503-0719 (2520015030719)
- NIIN: 01-503-0719 (015030719)
- Item name: PISTON,CLUTCH SHAFT ASSEMBLY
- Federal Supply Class: [FSC 2520 Vehicular Power Transmission Components](https://nsnexplorer.com/fsc/2520/)
- Federal Supply Group: [FSG 25](https://nsnexplorer.com/group/25/)
- Acquisition method suffix code: AMSC C: needs engineering source approval; other sources must qualify first. (observed 2026-10-27)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | PISTON, C2 |
| AGAV | END ITEM IDENTIFICATION | 2320-01-097-0260 HEMTT (HEAVY EXPANDED MOBILITY TACTICAL TRUCK); MRAP BUFFALO MK2A2 |
| FEAT | SPECIAL FEATURES | NHA ROTATING CLUTCH WITHOUT PTO, GROUP 25-511 ALLISON HD/B 500 SERIES ON-HIGHWAY TRANSMISSION. |
| RDAL | REFERENCE DATA AND LITERATURE | ALLISON HD/B 500 SERIES ON-HIGHWAY TRANS PARTS CATALOG |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 29505717 | 64678 | DAIMLER TRUCK NORTH AMERICA LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 29505717 | 73342 | ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5HA154 | 45152 | OSHKOSH CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5HA154 | 75Q65 | OSHKOSH DEFENSE LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-03 | [SPE7L126P99AC](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2520015030719) | PISTON, CLUTCH SHAFT ASSEMBLY | — | $732.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2520015030719&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2520015030719
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/2520-01-503-0719/
JSON: https://nsnexplorer.com/api/nsn/2520-01-503-0719.json