The Worm Shaft, cataloged under National Stock Number 3040-01-102-7656, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-102-7656 |
| Primary Part Number | 790-0909-001 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| Involute Spline Pitch Diameter | 0.2292 INCHES NOMINAL FIRST END THIRD PORTION IN |
| Worm Thread Lead | 0.100 INCHES NOMINAL IN |
| Spline Major Diameter | 0.249 INCHES NOMINAL FIRST END THIRD PORTION IN |
| Worm Pitch Diameter | 0.164 INCHES NOMINAL IN |
| Worm Outside Diameter | 0.195 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.156 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 0.230 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 0.249 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 0.249 INCHES NOMINAL FIRST END THIRD PORTION IN |
| Straight Unthreaded Section Diameter | 0.249 INCHES NOMINAL SECOND END FIRST PORTION IN |
| End Similarity | NOT IDENTICAL |
| Involute Spline Length | 0.172 INCHES NOMINAL FIRST END THIRD PORTION IN |
| Surface Treatment | ANODIZE |
| Worm Thread Section Length | 1.063 INCHES NOMINAL IN |
| Involute Spline Pressure Angle in Deg | 30.0 FIRST END THIRD PORTION |
| Worm Helix Angle | 15 DEG 58 MIN |
| Material | ALUMINUM ALLOY |
| Worm Thread Quantity | 2 |
| Worm Thread Direction | RIGHT-HAND |
| Involute Spline Quantity | 11 FIRST END THIRD PORTION |
| Worm Pressure Angle in Deg | 14.500 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 0.109 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Length | 0.125 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Straight Unthreaded Length | 0.161 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Straight Unthreaded Length | 0.172 INCHES NOMINAL FIRST END THIRD PORTION IN |
| Straight Unthreaded Length | 0.213 INCHES NOMINAL SECOND END FIRST 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 |
|---|---|
| 790-0909-001 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 790-0909 | D/9 Drawing number reference only Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 3040-01-102-7656 is a Worm Shaft, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-102-7656 has 1 manufacturer part number on file: 790-0909-001 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 790-0909-001: Shaft Location: BOTH ENDS OF WORM; Involute Spline Pitch Diameter: 0.2292 INCHES NOMINAL FIRST END THIRD PORTION IN; Worm Thread Lead: 0.100 INCHES NOMINAL IN; Overall Length: 1.843 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.
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.