The Shaft,shouldered, cataloged under National Stock Number 3040-01-357-8756, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is The Entwistle Company Llc. Government technical data includes 13 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-357-8756 |
| Primary Part Number | 4524730-2 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | The Entwistle Company Llc |
| Status | ACTIVE |
| Second End External Thread Length | 2.4062 INCHES NOMINAL IN |
| Step Quantity | 8 |
| First End Diameter | 1.6250 INCHES NOMINAL IN |
| Second End Diameter | 2.1250 INCHES NOMINAL IN |
| Largest Step Diameter | 3.000 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY |
| First End Keyway Depth | 0.1875 INCHES NOMINAL IN |
| Unpackaged Unit Weight | 300.00 POUNDS LBS |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL |
| External Keyway Length | 1.7500 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.3750 INCHES NOMINAL 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 |
|---|---|
| 4524730-2 PRIMARY | The Entwistle Company Llc (USA) |
| Reference | Meaning |
|---|---|
| 8816-01-00 | 5/9 Secondary reference Nook Industries Llc Dba Ball Bearing Screw Supply Inc |
| 4524730 ITEM 2 | 5/9 Secondary reference U.S. Government activity |
| 3037210 | 5/9 Secondary reference Linear Motion Llc Div Ugm |
| BSPR03000L0660M | 5/9 Secondary reference Linear Motion Llc Div Ugm |
| 4524730 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-357-8756 is a Shaft,shouldered, manufactured by The Entwistle Company Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-357-8756 has 1 manufacturer part number on file: 4524730-2 (The Entwistle Company Llc).
Key specifications for 4524730-2: Second End External Thread Length: 2.4062 INCHES NOMINAL IN; Step Quantity: 8; First End Diameter: 1.6250 INCHES NOMINAL IN; Second End Diameter: 2.1250 INCHES NOMINAL IN. 13 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.