The By Pass,assembly, cataloged under National Stock Number 4330-01-178-0712, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-178-0712 |
| Item Name | By Pass,assembly |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Status | ACTIVE |
| General Characteristics Item Description | WITH INDICATOR,200 SERIES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 9N50-2A | 5/9 Secondary reference Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations |
| 2N50-2A | 5/9 Secondary reference Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations |
| BV50-2A | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division |
| 2N50-2 | C/1 Advisory reference — outside the item-of-supply concept Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations |
| BV50-2A | 3/9 Design control — primary reference Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations |
NSN 4330-01-178-0712 is a By Pass,assembly, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
Key specifications for 4330-01-178-0712: General Characteristics Item Description: WITH INDICATOR,200 SERIES. 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.