The Worm Shaft, cataloged under National Stock Number 3040-00-715-9285, 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 28 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 | 3040-00-715-9285 |
| Primary Part Number | 8642409 |
| 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 |
| FSC Application Data | QUADRANT,FIRE CONTROL |
| Teeth Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| Worm Body Length | 1.314 INCHES NOMINAL IN |
| Worm Thread Lead | 0.100 INCHES NOMINAL IN |
| Thread Length | 0.250 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Worm Pitch Diameter | 0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Worm Outside Diameter | 0.558 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| Straight Unthreaded Section Diameter | 0.250 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 0.250 INCHES NOMINAL SECOND END FOURTH PORTION IN |
| Straight Unthreaded Section Diameter | 0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 0.315 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 0.400 INCHES MINIMUM AND 0.410 INCHES MAXIMUM SECOND END FIRST PORTION IN |
| Unthreaded Section Pin Hole Diameter | 0.1090 INCHES NOMINAL SECOND END FOURTH PORTION IN |
| End Similarity | NOT IDENTICAL |
| Shaft Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM LOCATION NOT OTHERWISE SPECIFIED |
| Screw Thread Series Designator | UNF SECOND END THIRD PORTION |
| Surface Treatment | PASSIVATE |
| Worm Thread Section Length | 0.560 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN |
| Shaft Thread Direction | RIGHT-HAND SECOND END THIRD PORTION |
| Worm Helix Angle | 3 DEG 39 MIN |
| Material | STEEL |
| Worm Thread Quantity | 1 |
| Worm Thread Direction | RIGHT-HAND |
| Worm Pressure Angle in Deg | 14.500 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 0.094 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Length | 0.234 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8642409 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 3040-00-715-9285 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 3040-00-715-9285 has 1 manufacturer part number on file: 8642409 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 8642409: Shaft Location: BOTH ENDS OF WORM; FSC Application Data: QUADRANT,FIRE CONTROL; Teeth Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM; Worm Body Length: 1.314 INCHES NOMINAL IN. 28 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.
NSN 3040-00-715-9285 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.