The Shaft,straight, cataloged under National Stock Number 3040-00-447-3974, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 14 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-447-3974 |
| Primary Part Number | 18172B |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| FSC Application Data | WATER PUMP,ENGINE,NONACFT |
| Second End Hole Diameter | 0.1890 INCHES NOMINAL IN |
| First End Diameter | 0.7496 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| First End Distance From Keyway Center to End | 0.406 INCHES NOMINAL IN |
| Second End Diameter | 0.7496 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| First End Style | WOODRUFF KEYWAY |
| Second End Keyway Width | 0.1550 INCHES MINIMUM AND 0.1570 INCHES MAXIMUM IN |
| Second End Distance From Hole Center to End | 0.625 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | WOODRUFF KEYWAY AND CROSS DRILLED |
| Material | STEEL CORROSION RESISTING |
| External Keyway Length | 0.750 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 0.750 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.1550 INCHES MINIMUM AND 0.1570 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 18172B PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 18172B | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 3040-00-447-3974 is a Shaft,straight, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-447-3974 has 1 manufacturer part number on file: 18172B (Brinkley Technology Group Llc Dba Hercules Manufacturing).
Key specifications for 18172B: FSC Application Data: WATER PUMP,ENGINE,NONACFT; Second End Hole Diameter: 0.1890 INCHES NOMINAL IN; First End Diameter: 0.7496 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN; First End Distance From Keyway Center to End: 0.406 INCHES NOMINAL IN. 14 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.