The Shaft,straight, cataloged under National Stock Number 3040-00-653-3412, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-653-3412 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| First End Diameter | 1.3770 INCHES NOMINAL IN |
| Second End Diameter | 1.3770 INCHES NOMINAL IN |
| Second End Distance From Keyway Center to End | 0.882 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED |
| Second End Keyway Width | 0.1900 INCHES NOMINAL IN |
| Second End Groove Diameter | 1.2740 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.155 INCHES NOMINAL IN |
| Second End Groove Width | 0.1280 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.155 INCHES NOMINAL IN |
| First End Groove Diameter | 1.2740 INCHES NOMINAL IN |
| Second End Style | WOODRUFF KEYWAY AND CIRCULAR GROOVED |
| Material | STEEL |
| First End Groove Width | 0.1280 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 |
| Reference | Meaning |
|---|---|
| APS16702221 | 5/9 Secondary reference Bratwear Inc Div Alpha Parts & Supply, Inc |
| NAFB3846C | 5/9 Secondary reference U.S. Government activity |
| 16702221 | 3/9 Design control — primary reference U.S. Government activity |
| 16702221 | C/1 Advisory reference — outside the item-of-supply concept Fairbanks Morse, Llc |
NSN 3040-00-653-3412 is a Shaft,straight, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-653-3412: First End Diameter: 1.3770 INCHES NOMINAL IN; Second End Diameter: 1.3770 INCHES NOMINAL IN; Second End Distance From Keyway Center to End: 0.882 INCHES NOMINAL IN; First End Style: CIRCULAR GROOVED. 14 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.