The Breather, cataloged under National Stock Number 3040-01-456-5401, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Magnaloy Coupling Co Div of Douville-Johnston Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Breather |
| FSC / FSG | 3040 — Miscellaneous Power Transmission Equipment (FSG 30) |
| Manufacturers | Magnaloy Coupling Co Div of Douville-Johnston Corp (CAGE 14204) |
| Parameter | Value |
|---|---|
| NSN | 3040-01-456-5401 |
| Primary Part Number | FB-A008W |
| Item Name | Breather |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Magnaloy Coupling Co Div of Douville-Johnston Corp |
| 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 |
|---|---|
| FB-A008W PRIMARY | Magnaloy Coupling Co Div of Douville-Johnston Corp (USA) |
| Reference | Meaning |
|---|---|
| PL-100153-24 | 5/9 Secondary reference Omnithruster Inc. |
| A-100-W-U | 5/9 Secondary reference Paul-Munroe Hydraulics Inc |
| 2570-AD1-12000 REV A ITEM 24 | 5/9 Secondary reference Omnithruster Inc. |
| 2570-AD1-12000 | D/9 Drawing number reference only Omnithruster Inc. |
NSN 3040-01-456-5401 is a Breather, manufactured by Magnaloy Coupling Co Div of Douville-Johnston Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-456-5401 has 1 manufacturer part number on file: FB-A008W (Magnaloy Coupling Co Div of Douville-Johnston Corp).
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.