The Worm Shaft, cataloged under National Stock Number 3040-00-504-9037, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Garwood/feller Inc Garwood Winch Div. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-504-9037 |
| Primary Part Number | 3004660 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Garwood/feller Inc Garwood Winch Div |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| FSC Application Data | HOIST WINCH,VEHICLE MOUNTING |
| Teeth Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM |
| Worm Body Length | 11.076 INCHES NOMINAL IN |
| Worm Thread Lead | 0.938 INCHES NOMINAL IN |
| Material Document and Classification | AISI 4140, 4142, 4145, 8742 ASSN STD ALL MATERIAL RESPONSES OR QQ-S-624, 4140, 4142, 4145 OR 8742 FED SPEC ALL MATERIAL RESPONSES |
| Worm Pitch Diameter | 3.216 INCHES NOMINAL IN |
| Worm Outside Diameter | 3.768 INCHES MINIMUM AND 3.782 INCHES MAXIMUM IN |
| Straight Unthreaded Section Diameter | 1.498 INCHES MINIMUM AND 1.500 INCHES MAXIMUM FIRST END THIRD PORTION IN |
| Straight Unthreaded Section Diameter | 1.498 INCHES MINIMUM AND 1.500 INCHES MAXIMUM SECOND END THIRD PORTION IN |
| Straight Unthreaded Section Diameter | 1.765 INCHES MINIMUM AND 1.767 INCHES MAXIMUM FIRST END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 1.765 INCHES MINIMUM AND 1.767 INCHES MAXIMUM SECOND END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 1.7710 INCHES MINIMUM AND 1.7715 INCHES MAXIMUM FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 1.7710 INCHES MINIMUM AND 1.7715 INCHES MAXIMUM SECOND END FIRST PORTION IN |
| Unthreaded Section Keyway Depth | 1.180 INCHES MAXIMUM SECOND END THIRD PORTION IN |
| End Similarity | NOT IDENTICAL |
| Shaft Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM LOCATION NOT OTHERWISE SPECIFIED |
| Worm Thread Section Length | 3.750 INCHES NOMINAL IN |
| Worm Helix Angle | 4 DEG 57 MIN |
| Material | STEEL COMP 4140 OR STEEL COMP 4142 OR STEEL COMP 4145 OR STEEL COMP 8742 |
| Worm Thread Quantity | 4 |
| Worm Thread Direction | LEFT-HAND |
| Unthreaded Section Keyway Width | 0.3720 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM FIRST END THIRD PORTION IN |
| Worm Pressure Angle in Deg | 27.500 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 0.938 INCHES NOMINAL FIRST END THIRD PORTION IN |
| Straight Unthreaded Length | 1.000 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Length | 1.000 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Straight Unthreaded Length | 1.017 INCHES NOMINAL SECOND END SECOND 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 |
NSN 3040-00-504-9037 is a Worm Shaft, manufactured by Garwood/feller Inc Garwood Winch Div, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-504-9037 has 2 manufacturer part numbers on file: 10876164 (U S Army Tank Automotive Command Amsta-Im-Mm), 3004660 (Garwood/feller Inc Garwood Winch Div).
Key specifications for 3004660: Shaft Location: BOTH ENDS OF WORM; FSC Application Data: HOIST WINCH,VEHICLE MOUNTING; Teeth Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM; Worm Body Length: 11.076 INCHES NOMINAL IN. 29 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.