The Head,fluid Filter, cataloged under National Stock Number 4330-01-424-2179, 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 Schroeder Industries Llc. Government technical data includes 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4330-01-424-2179 |
| Primary Part Number | A-LF-1587 |
| Item Name | Head,fluid Filter |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Schroeder Industries Llc |
| Status | ACTIVE |
| Inlet Port Type | PLAIN HOLE |
| Usage Design | ONE SEDIMENT BOWL |
| Outlet Port Type | PLAIN HOLE |
| Quantity | 4 |
| Mounting Bolt Hole | PROVIDED |
| Valve | INCLUDED |
| Valve Type | BYPASS |
| Filter Element | NOT INCLUDED |
| Material | IRON |
| Hole Diameter | 0.560 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 |
|---|---|
| A-LF-1587 PRIMARY | Schroeder Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| LF-1387 | C/1 Advisory reference — outside the item-of-supply concept Schroeder Industries Llc |
| D-5609 ITEM A | 5/1 Secondary reference Schroeder Industries Llc |
| D-5609 | 5/1 Secondary reference Schroeder Industries Llc |
NSN 4330-01-424-2179 is a Head,fluid Filter, manufactured by Schroeder Industries Llc, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-424-2179 has 1 manufacturer part number on file: A-LF-1587 (Schroeder Industries Llc).
3 possible matches (shared part number, not a government interchangeability claim): 4330-01-424-2180, 4330-01-424-2670, 4330-01-504-8852. Verify interchangeability with system specifications before substitution.
Key specifications for A-LF-1587: Inlet Port Type: PLAIN HOLE; Usage Design: ONE SEDIMENT BOWL; Outlet Port Type: PLAIN HOLE; Quantity: 4. 10 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.