The Filter Element,fluid, cataloged under National Stock Number 4330-01-203-2449, 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 Norgren C a 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. 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 | 4330-01-203-2449 |
| Primary Part Number | 3161-18 DUP |
| Item Name | Filter Element,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Norgren C a Co |
| Status | ACTIVE |
| Body Diameter | 1.190 INCHES NOMINAL IN |
| Body Overall Length | 1.475 INCHES NOMINAL IN |
| Filtration Rating in Microns | 40.0 NOMINAL |
| Design Type | NONREUSABLE |
| Temp Rating | 150.0 FAHRENHEIT NOMINAL DEGF |
| Media for Which Designed | AIR |
| Material | PLASTIC POLYPROPYLENE 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 |
|---|---|
| 3161-15 | Norgren Martonair Ltd (GBR) |
| 3161-18 DUP PRIMARY | Norgren C a Co (USA) |
NSN 4330-01-203-2449 is a Filter Element,fluid, manufactured by Norgren C a Co, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-203-2449 has 2 manufacturer part numbers on file: 3161-15 (Norgren Martonair Ltd), 3161-18 DUP (Norgren C a Co).
1 possible match (shared part number, not a government interchangeability claim): 4330-01-360-2451. Verify interchangeability with system specifications before substitution.
Key specifications for 3161-18 DUP: Body Diameter: 1.190 INCHES NOMINAL IN; Body Overall Length: 1.475 INCHES NOMINAL IN; Filtration Rating in Microns: 40.0 NOMINAL; Design Type: NONREUSABLE. 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.