The Filter,kit, cataloged under National Stock Number 4330-01-173-7594, 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 Industrial Service and Supply, Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Filter,kit |
| FSC / FSG | 4330 — Centrifugals, Separators, and Pressure and Vacuum Filters (FSG 43) |
| Manufacturers | Industrial Service and Supply, Inc (CAGE 0Z007) |
| Parameter | Value |
|---|---|
| NSN | 4330-01-173-7594 |
| Primary Part Number | 258041A1 |
| Item Name | Filter,kit |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Industrial Service and Supply, Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 258041A1 PRIMARY | Industrial Service and Supply, Inc (USA) |
| Reference | Meaning |
|---|---|
| 258041-1 | 5/9 Secondary reference Elsag Bailey Inc |
| A258041 | D/9 Drawing number reference only Elsag Bailey Inc |
| 258041-1 | 5/9 Secondary reference Industrial Service and Supply, Inc |
NSN 4330-01-173-7594 is a Filter,kit, manufactured by Industrial Service and Supply, Inc, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-173-7594 has 1 manufacturer part number on file: 258041A1 (Industrial Service and Supply, Inc).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-501-8456. Verify interchangeability with system specifications before substitution.
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.