The Head,fluid Filter, cataloged under National Stock Number 4330-01-444-4948, 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 Industrial Hydraulics Corp. Government technical data includes 19 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-444-4948 |
| Primary Part Number | 1307021 |
| Item Name | Head,fluid Filter |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Pall Industrial Hydraulics Corp |
| Status | ACTIVE |
| Inlet Port Type | THREADED FEMALE, GASKET SEAL |
| Usage Design | ONE SEDIMENT BOWL |
| Inlet Nominal Thread Size | 1.500 INCHES IN |
| Outlet Port Type | THREADED FEMALE, GASKET SEAL |
| Outlet Thread Direction | RIGHT-HAND |
| Mounting Method | THREAD BOWL |
| Quantity | 4 |
| Outlet Thread Series Designator | UNF |
| Mounting Bolt Hole | PROVIDED |
| Thread Direction | RIGHT-HAND INLET |
| Valve | INCLUDED |
| Bolt Circle Diameter | 1.410 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN |
| Inlet Thread Series Designator | UNF |
| Valve Type | BYPASS |
| Bowl Mounting Hole Diameter | 3.640 INCHES NOMINAL IN |
| Filter Element | NOT INCLUDED |
| Material | IRON CAST |
| Hole Diameter | 0.500 INCHES NOMINAL IN |
| Outlet Nominal Thread Size | 1.500 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 |
|---|---|
| 1307021 PRIMARY | Pall Industrial Hydraulics Corp (USA) |
| E1301385 ITEM 1 | Pall Industrial Hydraulics Corp (USA) |
| Reference | Meaning |
|---|---|
| 1307021 | 5/9 Secondary reference Dynamic Technology Inc |
| E1301385 | D/9 Drawing number reference only Pall Industrial Hydraulics Corp |
NSN 4330-01-444-4948 is a Head,fluid Filter, manufactured by Pall Industrial Hydraulics Corp, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-444-4948 has 2 manufacturer part numbers on file: 1307021 (Pall Industrial Hydraulics Corp), E1301385 ITEM 1 (Pall Industrial Hydraulics Corp).
5 possible matches (shared part number, not a government interchangeability claim): 4330-01-444-5027, 4330-01-444-5035, 4330-01-444-5238. Verify interchangeability with system specifications before substitution.
Key specifications for 1307021: Overall Height: 5.890 INCHES NOMINAL IN; Inlet Port Type: THREADED FEMALE, GASKET SEAL; Usage Design: ONE SEDIMENT BOWL; Inlet Nominal Thread Size: 1.500 INCHES IN. 19 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.