The Piston, cataloged under National Stock Number 4320-01-175-1907, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-175-1907 |
| Primary Part Number | H330045P01 |
| Item Name | Piston |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc |
| Status | ACTIVE |
| FSC Application Data | HYDRAULIC PUMP 4320011626456HS |
| General Characteristics Item Description | STAINLESS STEEL PER AMS 5643; CHROME PLATED PER QQ-C-320,CLASS 2C; 3.776 IN. LG; 0.798 IN. DIA 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 |
|---|---|
| H330045P01 PRIMARY | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 4320PL0872007 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 4320PL1603027 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| H330045P01 | 3/9 Design control — primary reference Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
| 330045P01 | 5/9 Secondary reference Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
| 330045P01 | 5/9 Secondary reference Howden Fluid Systems |
NSN 4320-01-175-1907 is a Piston, manufactured by Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-175-1907 has 1 manufacturer part number on file: H330045P01 (Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc).
Key specifications for H330045P01: FSC Application Data: HYDRAULIC PUMP 4320011626456HS; General Characteristics Item Description: STAINLESS STEEL PER AMS 5643; CHROME PLATED PER QQ-C-320,CLASS 2C; 3.776 IN. LG; 0.798 IN. DIA IN; End Item Identification: F-16 ACFT. 2 specifications are 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.