The Filter Element,fluid, cataloged under National Stock Number 4330-00-231-7068, 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 Baldwin Filters. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4330-00-231-7068 |
| Primary Part Number | PT-520-10 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Baldwin Filters |
| Status | ACTIVE |
| Filtering Media Design | PLEATED SINGLE FILTERING MEDIA RESPONSE |
| Body Diameter | 6.500 INCHES NOMINAL IN |
| Body Overall Length | 7.500 INCHES NOMINAL IN |
| Filtration Rating in Microns | 10.0 NOMINAL |
| Flow Direction | OUTSIDE IN |
| Design Type | NONREUSABLE |
| Style Designator | CYLINDRICAL W/OUT CONTAINER |
| Body Inside Diameter | 3.500 INCHES NOMINAL IN |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| Material | PAPER FILTERING MEDIUM |
| 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 |
|---|---|
| PT-520-10 PRIMARY | Baldwin Filters (USA) |
| Reference | Meaning |
|---|---|
| 22917 | 3/2 Design control — primary reference U.S. Government activity |
| M2541-10 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4330-00-231-7068 is a Filter Element,fluid, manufactured by Baldwin Filters, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-00-231-7068 has 1 manufacturer part number on file: PT-520-10 (Baldwin Filters).
5 possible matches (shared part number, not a government interchangeability claim): 1560-00-303-8489, 5340-01-192-6030, 4320-01-235-0629. Verify interchangeability with system specifications before substitution.
Key specifications for PT-520-10: Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE; Body Diameter: 6.500 INCHES NOMINAL IN; Body Overall Length: 7.500 INCHES NOMINAL IN; Filtration Rating in Microns: 10.0 NOMINAL. 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.