The Worm Shaft, cataloged under National Stock Number 3040-00-712-7699, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-712-7699 |
| Primary Part Number | 5H0284 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| Involute Spline Pitch Diameter | 0.6875 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Teeth Hardness Rating | 55.0 ROCKWELL C MINIMUM |
| Worm Body Length | 4.312 INCHES NOMINAL IN |
| Worm Thread Lead | 2.846 INCHES NOMINAL IN |
| Worm Pitch Diameter | 0.688 INCHES NOMINAL IN |
| Worm Outside Diameter | 2.250 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Worm Thread Section Length | 2.750 INCHES NOMINAL IN |
| Involute Spline Pressure Angle in Deg | 30.0 FIRST END SECOND PORTION |
| Worm Helix Angle | 28 DEG |
| Material | STEEL |
| Worm Thread Quantity | 4 |
| Worm Thread Direction | RIGHT-HAND |
| Involute Spline Quantity | 11 FIRST END SECOND PORTION |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| 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 |
|---|---|
| 5H0284 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 5H284 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
NSN 3040-00-712-7699 is a Worm Shaft, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-712-7699 has 1 manufacturer part number on file: 5H0284 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 5H0284: Shaft Location: BOTH ENDS OF WORM; Involute Spline Pitch Diameter: 0.6875 INCHES NOMINAL FIRST END SECOND PORTION IN; Teeth Hardness Rating: 55.0 ROCKWELL C MINIMUM; Worm Body Length: 4.312 INCHES NOMINAL IN. 16 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.