The Shaft,straight, cataloged under National Stock Number 3040-01-374-3977, 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 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-374-3977 |
| Primary Part Number | 124-4322615 PC12 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Second End External Thread Length | 1.3125 INCHES NOMINAL IN |
| First End Diameter | 0.8750 INCHES MAXIMUM IN |
| Second End Diameter | 0.7188 INCHES NOMINAL IN |
| First End Style | INTERNAL THREADED |
| First End Internal Thread Length | 1.5000 INCHES NOMINAL IN |
| Second End Groove Diameter | 0.7188 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.0938 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 6.1250 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| Material | STEEL COMP 304 |
| 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 |
|---|---|
| 124-4322615 PC12 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 124-4322615 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-374-3977 is a Shaft,straight, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-374-3977 has 1 manufacturer part number on file: 124-4322615 PC12 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-476-5842. Verify interchangeability with system specifications before substitution.
Key specifications for 124-4322615 PC12: Second End External Thread Length: 1.3125 INCHES NOMINAL IN; First End Diameter: 0.8750 INCHES MAXIMUM IN; Second End Diameter: 0.7188 INCHES NOMINAL IN; First End Style: INTERNAL THREADED. 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.