The Indicator-Dirt Alarm,filter Warn, cataloged under National Stock Number 4330-01-349-0639, 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 Schroeder Industries Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-349-0639 |
| Primary Part Number | MS5-30 |
| Item Name | Indicator-Dirt Alarm,filter Warn |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Schroeder Industries Llc |
| Status | ACTIVE |
| General Characteristics Item Description | CARTRIDGE-TYPE; ELECTRICAL; VISUAL POINTER; MANUAL RESET |
| 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 |
|---|---|
| MS5-30 PRIMARY | Schroeder Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| A-LF-2548 | 3/9 Design control — primary reference Schroeder Industries Llc |
| D-5590 ITEM A-2 SERIES B | 5/9 Secondary reference Schroeder Industries Llc |
NSN 4330-01-349-0639 is a Indicator-Dirt Alarm,filter Warn, manufactured by Schroeder Industries Llc, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-349-0639 has 1 manufacturer part number on file: MS5-30 (Schroeder Industries Llc).
Key specifications for MS5-30: General Characteristics Item Description: CARTRIDGE-TYPE; ELECTRICAL; VISUAL POINTER; MANUAL RESET; End Item Identification: SCHROEDER BROTHERS MODEL KF-30 SERIES B FILTERS. 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.