The Shaft,straight, cataloged under National Stock Number 3040-01-108-3930, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Air Armament Center/ En. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-108-3930 |
| Primary Part Number | 745298-1 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Air Armament Center/ En |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| First End Diameter | 0.9555 INCHES NOMINAL IN |
| Second End Diameter | 0.9550 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 0.8325 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED AND INTERNALLY THREADED |
| Second End Spline Major Diameter | 0.9550 INCHES NOMINAL IN |
| First End Internal Thread Length | 1.250 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.062 INCHES NOMINAL IN |
| Second End Spline Quantity | 9 |
| First End Groove Diameter | 0.5000 INCHES NOMINAL IN |
| Second End Style | SPLINED (STRAIGHT) |
| Material | STEEL COMP 4130 |
| First End Groove Width | 0.3120 INCHES NOMINAL IN |
| Second End Spline Length | 11.375 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 |
|---|---|
| 745298-1 PRIMARY | Air Armament Center/ En (USA) |
NSN 3040-01-108-3930 is a Shaft,straight, manufactured by Air Armament Center/ En, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-108-3930 has 1 manufacturer part number on file: 745298-1 (Air Armament Center/ En).
Key specifications for 745298-1: Surface Finish: 32.0 MICROINCHES; First End Diameter: 0.9555 INCHES NOMINAL IN; Second End Diameter: 0.9550 INCHES NOMINAL IN; Second End Spline Minor Diameter: 0.8325 INCHES NOMINAL IN. 15 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.