The Filter,fluid, cataloged under National Stock Number 4330-01-642-9403, 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 8 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-642-9403 |
| Primary Part Number | B474 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Baldwin Filters |
| Status | ACTIVE |
| Body Diameter | 3.0 INCHES NOMINAL IN |
| Body Overall Length | 3.531 INCHES NOMINAL IN |
| Design Type | NONREUSABLE |
| Body Outside Diameter | 3.0 INCHES NOMINAL IN |
| Body Height | 3.531 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL W/ INTEGRAL OUTER CASING |
| Thread Direction | RIGHT-HAND |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| 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 |
|---|---|
| B474 PRIMARY | Baldwin Filters (USA) |
NSN 4330-01-642-9403 is a Filter,fluid, manufactured by Baldwin Filters, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-642-9403 has 1 manufacturer part number on file: B474 (Baldwin Filters).
1 possible match (shared part number, not a government interchangeability claim): 6210-01-721-2311. Verify interchangeability with system specifications before substitution.
Key specifications for B474: Body Diameter: 3.0 INCHES NOMINAL IN; Body Overall Length: 3.531 INCHES NOMINAL IN; Design Type: NONREUSABLE; Body Outside Diameter: 3.0 INCHES NOMINAL IN. 8 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.