The Shaft,decompression Valve, cataloged under National Stock Number 3040-01-079-9141, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Hatz Diesel of America Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-079-9141 |
| Primary Part Number | 03063800 |
| Item Name | Shaft,decompression Valve |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Hatz Diesel of America Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 7.0 MM O/A DIA; 21.0 MM O/A H MM |
| 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 |
|---|---|
| 03063800 PRIMARY | Hatz Diesel of America Inc (USA) |
| Reference | Meaning |
|---|---|
| 69454 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
NSN 3040-01-079-9141 is a Shaft,decompression Valve, manufactured by Hatz Diesel of America Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-079-9141 has 1 manufacturer part number on file: 03063800 (Hatz Diesel of America Inc).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-434-9576. Verify interchangeability with system specifications before substitution.
Key specifications for 03063800: General Characteristics Item Description: 7.0 MM O/A DIA; 21.0 MM O/A H MM. 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.