The Shaft,straight, cataloged under National Stock Number 3040-01-643-1791, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-643-1791 |
| Primary Part Number | 845-7526489-XX-12-X-X-X-X-008 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Material Document and Classification | AISI 4140 ASSN STD SINGLE MATERIAL RESPONSE |
| Material | STEEL COMP 4140 |
| 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 |
|---|---|
| 845-7526489-2C-12-B-3-N-G-008 | Naval Sea Systems Command (USA) |
| 845-7526489-XX-12-X-X-X-X-008 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 845-7526489 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-643-1791 is a Shaft,straight, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-643-1791 has 2 manufacturer part numbers on file: 845-7526489-2C-12-B-3-N-G-008 (Naval Sea Systems Command), 845-7526489-XX-12-X-X-X-X-008 (Naval Sea Systems Command).
Key specifications for 845-7526489-XX-12-X-X-X-X-008: Material Document and Classification: AISI 4140 ASSN STD SINGLE MATERIAL RESPONSE; Part Name Assigned by Controlling Agency: PINION SHAFT; End Item Identification: MANUAL WORM GEAR OPERATOR; Material: STEEL COMP 4140. 2 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.