The Head,fluid Filter, cataloged under National Stock Number 4330-01-260-4501, 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 Corp Sub of Pall Corp Mectron Industries Div. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4330-01-260-4501 |
| Primary Part Number | WA0044212D1A |
| Item Name | Head,fluid Filter |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
| Status | ACTIVE |
| Overall Diameter | 2.750 INCHES NOMINAL IN |
| Quantity | 2 |
| Mounting Bolt Hole | PROVIDED |
| Material | NICKEL ALLOY |
| Hole Diameter | 0.266 INCHES NOMINAL 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 |
|---|---|
| WA0044212D1A PRIMARY | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div (USA) |
| Reference | Meaning |
|---|---|
| WA-0042-12D1A | 5/9 Secondary reference Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
| WD-00442-12C | D/9 Drawing number reference only Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
| WA-00442-12DIA | 5/9 Secondary reference Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
NSN 4330-01-260-4501 is a Head,fluid Filter, manufactured by Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-260-4501 has 1 manufacturer part number on file: WA0044212D1A (Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div).
2 possible matches (shared part number, not a government interchangeability claim): 4330-01-261-1107, 4330-01-261-1114. Verify interchangeability with system specifications before substitution.
Key specifications for WA0044212D1A: Overall Diameter: 2.750 INCHES NOMINAL IN; Quantity: 2; Mounting Bolt Hole: PROVIDED; Material: NICKEL ALLOY. 5 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.