The Extension Shaft, cataloged under National Stock Number 3040-01-459-4649, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-459-4649 |
| Primary Part Number | 1802785-2 |
| Item Name | Extension Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Socket Diameter | 0.187 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Length | 1.625 INCHES NOMINAL IN |
| Socket Depth | 0.500 INCHES NOMINAL IN |
| Style Designator | PLAIN SOCKET |
| Outside Diameter | 0.312 INCHES NOMINAL IN |
| Shaft End Design | FEMALE |
| Shaft End Diameter | 0.187 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Shoulder Length | 0.625 INCHES NOMINAL IN |
| End Type | INTEGRAL COUPLING |
| Shaft End Configuration | ROUND W/KEYWAY |
| 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 |
|---|---|
| 1802785-2 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1802785-5 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| PL1889768 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
NSN 3040-01-459-4649 is a Extension Shaft, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-459-4649 has 1 manufacturer part number on file: 1802785-2 (Northrop Grumman Systems Corporation).
Key specifications for 1802785-2: Socket Diameter: 0.187 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN; Length: 1.625 INCHES NOMINAL IN; Socket Depth: 0.500 INCHES NOMINAL IN; Style Designator: PLAIN SOCKET. 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.