The Head,fluid Filter, cataloged under National Stock Number 4330-01-170-9804, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. The manufacturer of record is Pall Aeropower Corporation. Government technical data includes 23 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-170-9804 |
| Primary Part Number | HH9020A125SHD |
| Item Name | Head,fluid Filter |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Pall Aeropower Corporation |
| Status | ACTIVE |
| Inlet Port Type | THREADED FEMALE, PLAIN |
| Usage Design | ONE SEDIMENT BOWL |
| Outlet Thread Class | 2B |
| Inlet Nominal Thread Size | 1.062 INCHES IN |
| Outlet Port Type | THREADED FEMALE, PLAIN |
| Outlet Thread Direction | RIGHT-HAND |
| Mounting Method | THREAD BOWL |
| Quantity | 4 |
| Outlet Thread Series Designator | UN |
| Mounting Bolt Hole | PROVIDED |
| Thread Direction | RIGHT-HAND INLET |
| Valve | INCLUDED |
| Bolt Circle Diameter | 10.845 INCHES NOMINAL IN |
| Inlet Thread Series Designator | UN |
| Valve Type | BYPASS |
| Bowl Mounting Hole Diameter | 2.500 INCHES NOMINAL IN |
| Outlet Thread Quantity Per Inch | 12 |
| Inlet Thread Quantity Per Inch | 12 |
| Filter Element | NOT INCLUDED |
| Material | ALUMINUM |
| Inlet Thread Class | 2B |
| Hole Diameter | 0.350 INCHES NOMINAL IN |
| Outlet Nominal Thread Size | 1.062 INCHES 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 |
|---|---|
| HH9020A125SHD PRIMARY | Pall Aeropower Corporation (USA) |
| Reference | Meaning |
|---|---|
| HH9020A125SHD | 5/9 Secondary reference Pall Corp Div Pall Corporation |
NSN 4330-01-170-9804 is a Head,fluid Filter, manufactured by Pall Aeropower Corporation, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-170-9804 has 1 manufacturer part number on file: HH9020A125SHD (Pall Aeropower Corporation).
Key specifications for HH9020A125SHD: Inlet Port Type: THREADED FEMALE, PLAIN; Usage Design: ONE SEDIMENT BOWL; Outlet Thread Class: 2B; Inlet Nominal Thread Size: 1.062 INCHES IN. 23 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.