The Filter,pressure Switch, cataloged under National Stock Number 4330-01-488-6474, 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 Setra Systems, Inc. Dba Gems Sensors. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-488-6474 |
| Primary Part Number | PS41-30-4MNB-C-HN-FS55PSIR |
| Item Name | Filter,pressure Switch |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Setra Systems, Inc. Dba Gems Sensors |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| PS41-30-4MNB-C-HN-FS55PSIR PRIMARY | Setra Systems, Inc. Dba Gems Sensors (USA) |
| Reference | Meaning |
|---|---|
| MPS-E-55PSI-R-4M-C-HN | 5/9 Secondary reference Mayhew Industries, Inc. |
NSN 4330-01-488-6474 is a Filter,pressure Switch, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-488-6474 has 1 manufacturer part number on file: PS41-30-4MNB-C-HN-FS55PSIR (Setra Systems, Inc. Dba Gems Sensors).
Key specifications for PS41-30-4MNB-C-HN-FS55PSIR: Criticality Code Justification: FEAT; Special Features: USED ON FIGHTER SUPPORT AIRCRAFT F/A-18 (NON-HSP); Part Name Assigned by Controlling Agency: INAVY - FILTER PRESSURE SWITCH. 1 specification is 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.