The Shaft,shouldered, cataloged under National Stock Number 3040-01-475-8412, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 20 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-475-8412 |
| Primary Part Number | 13834N18C |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Second End External Thread Length | 1.2500 INCHES NOMINAL IN |
| Step Quantity | 15 |
| First End Diameter | 1.3750 INCHES NOMINAL IN |
| Second End Diameter | 1.2500 INCHES NOMINAL IN |
| Largest Step Diameter | 3.1250 INCHES NOMINAL IN |
| First End External Thread Length | 0.5000 INCHES NOMINAL IN |
| Special Test Features | SHALL NOT CONTAIN FUNCTIONAL MERCURY AND/OR BE CONTAMINATED BY MERCURY OR MERCURY COMPOUNDS; CERTAIN DIMENSIONS REQUIRE SPECIAL DOCUMENTATION OF INSPECTION |
| First End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| Supplementary Features | TWELVE KEYWAYS AND ONE HOLE; FIRST END 1.375-12UNF-3A L.H. THREADS; SMALL CENTER DRILL FOR MFG PURPOSES; SECOND END 1.250-12UNF-3A R.H. THREADS AND INTERNALLY 0.484 DRILL-1.50 DEEP, 0.625 DRILL-0.25 DEEP, AND 0.562-12UNC-3B TAP TO 1.19 IN A |
| Material Document and Classification | QQ-S-763, CL. 410, COND. T-HF FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 1.1400 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.5000 INCHES NOMINAL IN |
| Second End Groove Width | 0.2500 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 1.2500 INCHES NOMINAL IN |
| First End Groove Diameter | 1.2500 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| Material | STEEL COMP 410 |
| First End Groove Width | 0.2500 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 |
|---|---|
| 13834N18C | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| PL-13796N18ITEM10 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| PL-13796N18ITEM10 | 5/9 Secondary reference U.S. Government activity |
| 13795N18-10 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 13834N18 | 3/9 Design control — primary reference U.S. Government activity |
| 13795N18-10 | 5/9 Secondary reference U.S. Government activity |
| 13834N18 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corporation Div Epd |
NSN 3040-01-475-8412 is a Shaft,shouldered, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-475-8412 has 1 manufacturer part number on file: 13834N18C (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for 13834N18C: Surface Finish: 32.0 MICROINCHES; Second End External Thread Length: 1.2500 INCHES NOMINAL IN; Step Quantity: 15; First End Diameter: 1.3750 INCHES NOMINAL IN. 20 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.