AB DEFENCE
M109 Self-Propelled Howitzer — Pump Assy W/ Handle – NSN 4320-01-441-5781 – Part No: 9398982
- SKU
- 4320-01-441-5781
- NSN
- 4320-01-441-5781
- Part number
- 9398982
AB DEFENCE
Product enquiry
M109 Self-Propelled Howitzer — Pump Assy W/ Handle – NSN 4320-01-441-5781 – Part No: 9398982

Product information
Pump Assy W/ Handle (NSN 4320-01-441-5781 (4320014415781) / Part No 9398982) for M109 Self-Propelled Howitzer. Genuine NATO-standard military vehicle spare part supplied by AB Defence with full traceability and export compliance.
Technical Identification & NATO Cross-Reference Matrix
Pump Assy W/ Handle (NSN 4320-01-441-5781 (4320014415781) / Part No 9398982) is a defense-grade replacement component engineered for M109 Self-Propelled Howitzer fleets and compatible military land platforms. Classified under Hydraulics & Mechanical Components (Hydraulics & Mechanical Components), this part meets strict dimensional, metallurgical, and environmental tolerances required for tactical field maintenance and depot-level overhaul programs.
| Technical Parameter | Specification & Reference Value |
|---|---|
| Component Nomenclature | Pump Assy W/ Handle |
| Primary Vehicle Platform | M109 Self-Propelled Howitzer |
| Subsystem / Functional Group | Hydraulics & Mechanical Components |
| NATO Stock Number (Dashed) | 4320-01-441-5781 |
| NSN (13-Digit Unformatted) | 4320014415781 |
| NIIN (National Item ID Number) | 01-441-5781 / 014415781 |
| Federal Supply Class (FSC / FSG) | FSC 4320 (FSG 43) — Hydraulics & Mechanical Components |
| NCB Codification Country | 01 — United States (DLA / US DoD) |
| Manufacturer / OEM Part Number | 9398982 |
| Cross-Reference Search Codes | 4320-01-441-5781, 4320014415781, NIIN 01-441-5781, NIIN 014415781, 9398982 |
| Manufacturer / Platform Ecosystem | BAE Systems / FMC |
| Quality & Traceability Standard | NATO STANAG / MIL-STD Compliant — Certificate of Conformity (CoC) & Batch Traceability |
Subsystem Engineering Role & Maintenance Protocol
- Functional Application: Engineered to sustain mission-critical reliability within Hydraulics & Mechanical Components assemblies under extreme thermal, mechanical, and cross-country vibration loads.
- Platform Integration: Specifically cross-referenced for M109 Self-Propelled Howitzer maintenance schedules, ensuring direct fitment, interchangeability, and zero modification during unit replacement.
- Preventive Maintenance & Inspection: During scheduled periodic maintenance (PMCS) or subsystem overhaul, inspect mating interfaces, torque specifications, and fluid/electrical seals alongside adjacent Hydraulics & Mechanical Components assemblies to prevent cascading downtime.
Defense Procurement, Documentation & Global Export Supply
AB Defence supplies verified OEM and NATO-codified spare parts to Ministries of Defence, armed forces maintenance commands, and prime defense contractors worldwide. Every shipment of NSN 4320-01-441-5781 (4320014415781) / Part No 9398982 is supported by controlled documentation, serial/lot traceability, military-grade protective packaging, and full export compliance. Explore our complete M109 Self-Propelled Howitzer Spare Parts & Sustainment Coverage or submit a Request for Quotation (RFQ) using the form above.

