The Shaft,straight, cataloged under National Stock Number 3040-01-718-0532, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Mack Boring & Parts Co. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-718-0532 |
| Primary Part Number | 4172020 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Mack Boring & Parts Co |
| Status | ACTIVE |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4172020 PRIMARY | Mack Boring & Parts Co (USA) |
| Reference | Meaning |
|---|---|
| 014-4172 20 | D/9 Drawing number reference only Mack Boring & Parts Co |
NSN 3040-01-718-0532 is a Shaft,straight, manufactured by Mack Boring & Parts Co, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-718-0532 has 1 manufacturer part number on file: 4172020 (Mack Boring & Parts Co).
Key specifications for 4172020: Overall Length: 77.0 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: CV SHAFT - CARBON; End Item Identification: AN/SLW-2 PROPULSION; Material: STEEL. 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.
NSN 3040-01-718-0532 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.