The Head,fluid Filter, cataloged under National Stock Number 4330-01-658-2734, 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 Hydraulics International, Inc. Dba Hydraulics International Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Head,fluid Filter |
| FSC / FSG | 4330 — Centrifugals, Separators, and Pressure and Vacuum Filters (FSG 43) |
| Manufacturers | Hydraulics International, Inc. Dba Hydraulics International Inc (CAGE 56529); Hydraulics International Inc (CAGE 1VCN7) |
| Parameter | Value |
|---|---|
| NSN | 4330-01-658-2734 |
| Primary Part Number | 37027-1 |
| Item Name | Head,fluid Filter |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Hydraulics International, Inc. Dba Hydraulics International 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 |
|---|---|
| 37027-1 PRIMARY | Hydraulics International, Inc. Dba Hydraulics International Inc (USA) |
| 37021-1 | Hydraulics International Inc (USA) |
| Reference | Meaning |
|---|---|
| 37027 | D/9 Drawing number reference only Hydraulics International, Inc. Dba Hydraulics International Inc |
NSN 4330-01-658-2734 is a Head,fluid Filter, manufactured by Hydraulics International, Inc. Dba Hydraulics International Inc, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-658-2734 has 2 manufacturer part numbers on file: 37027-1 (Hydraulics International, Inc. Dba Hydraulics International Inc), 37021-1 (Hydraulics International Inc).
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.