The Filter,fluid, cataloged under National Stock Number 4330-01-541-9479, 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 Gas Turbine Efficiency Llc Dba Gas Turbine Efficiency Llc Div Gas Turbine Efficiency. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-541-9479 |
| Primary Part Number | 20191 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Gas Turbine Efficiency Llc Dba Gas Turbine Efficiency Llc Div Gas Turbine Efficiency |
| Status | ACTIVE |
| 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 |
|---|---|
| 40071471 | Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt) (GBR) |
| 20191 | Rolls-Royce Plc Naval Marine (GBR) |
| 20191 PRIMARY | Gas Turbine Efficiency Llc Dba Gas Turbine Efficiency Llc Div Gas Turbine Efficiency (USA) |
| Reference | Meaning |
|---|---|
| 20191 | 5/9 Secondary reference Rolls-Royce Marine North America Inc. |
| 20191 | 3/9 Design control — primary reference Gas Turbine Efficiency Ab Gte Dba Engineering Div Main Office |
| 20191 | C/1 Advisory reference — outside the item-of-supply concept Gas Turbine Efficiency Ab Gte |
NSN 4330-01-541-9479 is a Filter,fluid, manufactured by Gas Turbine Efficiency Llc Dba Gas Turbine Efficiency Llc Div Gas Turbine Efficiency, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-541-9479 has 3 manufacturer part numbers on file: 40071471 (Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt)), 20191 (Rolls-Royce Plc Naval Marine), 20191 (Gas Turbine Efficiency Llc Dba Gas Turbine Efficiency Llc Div Gas Turbine Efficiency).
Key specifications for 20191: Special Features: MFR ID-GTE 160I-42. WORKING PRESSURE-725 - 870 PSI. OPERATING TEMPERATURE-140 DEG F. FLOW-11 GPM. DEGF; Part Name Assigned by Controlling Agency: FILTER,SUCTION; End Item Identification: WASH SYSTEM,TURBINE. 0 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.