The Shaft,shouldered, cataloged under National Stock Number 3040-00-217-7021, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-217-7021 |
| Primary Part Number | 40639 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — No Item Name Available |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| Largest Step Diameter | 0.875 INCHES NOMINAL IN |
| Surface Finish | 32.0 MICROINCHES |
| First End Internal Thread Length | 0.600 INCHES NOMINAL IN |
| Second End Style | SLOTTED |
| End Similarity | NOT IDENTICAL |
| Material | STEEL CORROSION RESISTING |
| First End Style | INTERNAL THREADED |
| First End Diameter | 0.5900 INCHES NOMINAL IN |
| Step Quantity | 4 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 40639 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
NSN 3040-00-217-7021 is a Shaft,shouldered, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 3040 (No Item Name Available). Status: active.
NSN 3040-00-217-7021 has 1 cross-referenced part number: 40639 (L3harris Technologies, Inc Div Space & Airborne Systems).
There are 3 known substitutes for 3040-00-217-7021: 5330-00-182-6824, 2910-00-459-7133, 5330-00-570-8726. Verify interchangeability with system specifications before substitution.
Key specifications for 40639: Largest Step Diameter: 0.875 INCHES NOMINAL IN; Surface Finish: 32.0 MICROINCHES; First End Internal Thread Length: 0.600 INCHES NOMINAL IN; Second End Style: SLOTTED. 10 total characteristics are documented in the Federal Logistics Information System.