The Worm Shaft, cataloged under National Stock Number 3040-00-507-9340, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 25 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-507-9340 |
| Primary Part Number | 7665150 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| Teeth Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Worm Body Length | 2.186 INCHES NOMINAL IN |
| Worm Thread Lead | 0.2618 INCHES NOMINAL IN |
| Worm Pitch Diameter | 0.498 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Worm Outside Diameter | 0.578 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN |
| Straight Unthreaded Section Diameter | 0.397 INCHES MAXIMUM FIRST END FIRST PORTION IN |
| Unthreaded Section Pin Hole Diameter | 0.1250 INCHES NOMINAL SECOND END FOURTH PORTION IN |
| End Similarity | NOT IDENTICAL |
| Shaft Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM LOCATION NOT OTHERWISE SPECIFIED |
| Surface Treatment | PASSIVATE |
| Worm Thread Section Length | 0.750 INCHES NOMINAL IN |
| Worm Helix Angle | 9 DEG 28 MIN |
| Material | STEEL |
| Worm Thread Quantity | 2 |
| Worm Thread Direction | RIGHT-HAND |
| Worm Pressure Angle in Deg | 14.500 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 0.187 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Straight Unthreaded Length | 0.187 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Straight Unthreaded Length | 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM FIRST END THIRD PORTION IN |
| Straight Unthreaded Length | 0.219 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Straight Unthreaded Length | 0.653 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Length | 0.783 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Straight Unthreaded Length | 0.886 INCHES NOMINAL SECOND END FOURTH PORTION 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 |
|---|---|
| 7665150 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 3040-00-507-9340 is a Worm Shaft, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-507-9340 has 1 manufacturer part number on file: 7665150 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 7665150: Shaft Location: BOTH ENDS OF WORM; Teeth Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM; Worm Body Length: 2.186 INCHES NOMINAL IN; Worm Thread Lead: 0.2618 INCHES NOMINAL IN. 25 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.