The Shaft,shouldered, cataloged under National Stock Number 3040-01-408-4749, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Ward Leonard Ct Llc. Government technical data includes 17 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-408-4749 |
| Primary Part Number | 21160055 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| Step Quantity | 8 |
| First End Diameter | 1.3740 INCHES MINIMUM AND 1.3750 INCHES MAXIMUM IN |
| Second End Diameter | 1.6240 INCHES MINIMUM AND 1.6250 INCHES MAXIMUM IN |
| Largest Step Diameter | 2.250 INCHES MAXIMUM IN |
| First End Style | FLAT KEYWAY |
| Second End Keyway Width | 0.3750 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-763 CLASS 303 MFR REF ALL MATERIAL RESPONSES |
| First End Keyway Depth | 1.740 INCHES NOMINAL IN |
| Second End Keyway Depth | 2.207 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | FLAT KEYWAYS AND INTERNALLY THREADED |
| Material | STEEL COMP 303 |
| Second End Internal Thread Length | 0.560 INCHES NOMINAL IN |
| External Keyway Length | 1.500 INCHES NOMINAL FIRST END IN |
| External Keyway Length | 2.880 INCHES NOMINAL SECOND END IN |
| First End Keyway Width | 0.3120 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3040-01-408-4749 is a Shaft,shouldered, manufactured by Ward Leonard Ct Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-408-4749 has 2 manufacturer part numbers on file: 21160055 (Ward Leonard Ct Llc), 01-0190-7 (Ward Leonard Ct Llc).
Key specifications for 21160055: Surface Finish: 125.0 MICROINCHES; Step Quantity: 8; First End Diameter: 1.3740 INCHES MINIMUM AND 1.3750 INCHES MAXIMUM IN; Second End Diameter: 1.6240 INCHES MINIMUM AND 1.6250 INCHES MAXIMUM IN. 17 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.