The Filter,fluid, cataloged under National Stock Number 4330-01-525-2801, 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 Swagelok Co. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-525-2801 |
| Primary Part Number | SS-4FW4-2 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Filtration Rating in Microns | 2.0 NOMINAL |
| Style Designator | INLINE (HYDRAULIC) |
| Purchase Description Identification | 02570-SS-4FW4-2 |
| Nominal Thread Size | 0.250 INCHES IN |
| Body Length | 1.570 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING BODY |
| Thread Series Designator | NPT |
| 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 |
|---|---|
| SS-4FW4-02 | Swagelok Co (USA) |
| SS-4FW4-2 PRIMARY | Swagelok Co (USA) |
NSN 4330-01-525-2801 is a Filter,fluid, manufactured by Swagelok Co, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-525-2801 has 2 manufacturer part numbers on file: SS-4FW4-02 (Swagelok Co), SS-4FW4-2 (Swagelok Co).
Key specifications for SS-4FW4-2: Filtration Rating in Microns: 2.0 NOMINAL; Style Designator: INLINE (HYDRAULIC); Purchase Description Identification: 02570-SS-4FW4-2; Nominal Thread Size: 0.250 INCHES IN. 7 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.