The Worm Shaft, cataloged under National Stock Number 3040-00-652-6305, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 21 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 | 3040-00-652-6305 |
| Primary Part Number | 8759232 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| Teeth Hardness Rating | 48.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| Worm Body Length | 2.500 INCHES NOMINAL IN |
| Worm Thread Lead | 0.750 INCHES NOMINAL IN |
| Worm Pitch Diameter | 2.500 INCHES NOMINAL IN |
| Worm Outside Diameter | 2.680 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.872 INCHES MINIMUM AND 0.875 INCHES MAXIMUM SECOND END FIFTH PORTION IN |
| Straight Unthreaded Section Diameter | 1.125 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Straight Unthreaded Section Diameter | 1.1810 INCHES MINIMUM AND 1.1814 INCHES MAXIMUM SECOND END SECOND PORTION IN |
| Unthreaded Section Keyway Depth | 0.139 INCHES MINIMUM AND 0.147 INCHES MAXIMUM SECOND END FIFTH PORTION IN |
| End Similarity | NOT IDENTICAL |
| Shaft Hardness Rating | 48.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM LOCATION NOT OTHERWISE SPECIFIED |
| Surface Treatment | PHOSPHATE |
| Worm Thread Section Length | 2.063 INCHES NOMINAL IN |
| Worm Helix Angle | 14 DEG 56 MIN 24 SEC |
| Material | STEEL |
| Worm Thread Quantity | 2 |
| Worm Thread Direction | RIGHT-HAND |
| Unthreaded Section Keyway Width | 0.2490 INCHES MINIMUM AND 0.2510 INCHES MAXIMUM SECOND END FIFTH PORTION IN |
| Worm Pressure Angle in Deg | 14.500 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| 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 |
|---|---|
| 8759232 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3040-00-652-6305 is a Worm Shaft, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-652-6305 has 1 manufacturer part number on file: 8759232 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8759232: Shaft Location: BOTH ENDS OF WORM; Teeth Hardness Rating: 48.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM; Worm Body Length: 2.500 INCHES NOMINAL IN; Worm Thread Lead: 0.750 INCHES NOMINAL IN. 21 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 3040-00-652-6305 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.