The Shaft,shouldered, cataloged under National Stock Number 3040-00-344-7637, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-344-7637 |
| Primary Part Number | 990002 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Second End External Thread Length | 0.375 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 0.1900 INCHES NOMINAL IN |
| Second End Diameter | 0.2500 INCHES NOMINAL IN |
| Largest Step Diameter | 0.500 INCHES NOMINAL IN |
| First End External Thread Length | 0.312 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 990002 | Doral, Inc Dba J & F Engineering (USA) |
| 990002 | L3 Technologies, Inc. Div L3 Keo (USA) |
| 990002 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 990002 | Quadriel Inc (USA) |
| Reference | Meaning |
|---|---|
| 990002 | 5/9 Secondary reference Profile Gear Corp |
| 990002REVA | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 990002 | 5/9 Secondary reference Able Machine and Supply Co |
NSN 3040-00-344-7637 is a Shaft,shouldered, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-344-7637 has 4 manufacturer part numbers on file: 990002 (Doral, Inc Dba J & F Engineering), 990002 (L3 Technologies, Inc. Div L3 Keo), 990002 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 990002 (Quadriel Inc).
6 possible matches (shared part number, not a government interchangeability claim): 3930-00-938-7952, 4820-01-024-2027, 5961-01-172-6507. Verify interchangeability with system specifications before substitution.
Key specifications for 990002: Surface Finish: 32.0 MICROINCHES; Second End External Thread Length: 0.375 INCHES NOMINAL IN; Step Quantity: 4; First End Diameter: 0.1900 INCHES NOMINAL IN. 11 specifications are 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.