The Piston,master, cataloged under National Stock Number 2815-01-088-7328, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Jacobs Mfg Co the. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-088-7328 |
| Primary Part Number | 004089 |
| Item Name | Piston,master |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Jacobs Mfg Co the |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL WITH SOLID CRES CORE INSTERT,1.044 IN O/A LG,0.750 IN. OD,0.533 IN. ID IN |
| 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 |
|---|---|
| 004089 PRIMARY | Jacobs Mfg Co the (USA) |
| MA246A21 012 PRIMARY | Am General Llc (USA) |
NSN 2815-01-088-7328 is a Piston,master, manufactured by Jacobs Mfg Co the, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-088-7328 has 2 manufacturer part numbers on file: 004089 (Jacobs Mfg Co the), MA246A21 012 (Am General Llc).
Key specifications for 004089: General Characteristics Item Description: STEEL WITH SOLID CRES CORE INSTERT,1.044 IN O/A LG,0.750 IN. OD,0.533 IN. ID IN. 1 specification is 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.