The Parts Kit,fluid Pressure Filter, cataloged under National Stock Number 4330-01-436-0944, 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 Hydac Corp. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-436-0944 |
| Primary Part Number | HF4-1-R-25 SEAL KIT BUNA |
| Item Name | Parts Kit,fluid Pressure Filter |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Hydac Corp |
| Status | ACTIVE |
| End Item Source | 59793 |
| End Item Name | HYDRAULIC FLUID FILTER |
| 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 |
|---|---|
| HF4-1-R-25 SEAL KIT BUNA PRIMARY | Hydac Corp (USA) |
| SEAL KIT HF4RBUNA | Hydac Corp (USA) |
| Reference | Meaning |
|---|---|
| HF4-1-R-25-SEAL | C/1 Advisory reference — outside the item-of-supply concept Hydac Corp |
NSN 4330-01-436-0944 is a Parts Kit,fluid Pressure Filter, manufactured by Hydac Corp, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-436-0944 has 2 manufacturer part numbers on file: HF4-1-R-25 SEAL KIT BUNA (Hydac Corp), SEAL KIT HF4RBUNA (Hydac Corp).
Key specifications for HF4-1-R-25 SEAL KIT BUNA: End Item Source: 59793; End Item Name: HYDRAULIC FLUID FILTER; Special Features: BUNA-N SEAL KIT; End Item Identification: NAVY WEAPONS SYSTEM TH, STRATEGIC SEALIFT CONVERSION SHIPSMCLASS. 2 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.