The Worm Shaft, cataloged under National Stock Number 3040-00-846-6880, 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 | 3040-00-846-6880 |
| Primary Part Number | 8261817 |
| 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 | ONE END OF WORM |
| Worm Body Length | 0.840 INCHES NOMINAL IN |
| Worm Thread Lead | 0.200 INCHES NOMINAL IN |
| Thread Length | 0.363 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Worm Pitch Diameter | 0.750 INCHES NOMINAL IN |
| Worm Outside Diameter | 0.877 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.2812 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 0.310 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 0.3935 INCHES NOMINAL SECOND END FOURTH PORTION IN |
| Straight Unthreaded Section Diameter | 0.437 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 0.530 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 0.590 INCHES NOMINAL SECOND END FIFTH PORTION IN |
| End Similarity | NOT IDENTICAL |
| Screw Thread Series Designator | UNF SECOND END THIRD PORTION |
| Worm Thread Section Length | 0.840 INCHES NOMINAL IN |
| Shaft Thread Direction | RIGHT-HAND SECOND END THIRD PORTION |
| Worm Helix Angle | 4 DEG 51 MIN |
| Material | STEEL CORROSION RESISTING |
| 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 | 0.340 INCHES NOMINAL SECOND END FOURTH PORTION IN |
| Straight Unthreaded Length | 0.531 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Straight Unthreaded Length | 0.780 INCHES NOMINAL SECOND END FIFTH PORTION IN |
| Straight Unthreaded Length | 0.782 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Straight Unthreaded Length | 0.812 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Length | 1.146 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 |
| Part Number | Manufacturer |
|---|---|
| 8261817 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 3040-00-846-6880 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 3040-00-846-6880 has 1 manufacturer part number on file: 8261817 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 8261817: Shaft Location: ONE END OF WORM; Worm Body Length: 0.840 INCHES NOMINAL IN; Worm Thread Lead: 0.200 INCHES NOMINAL IN; Thread Length: 0.363 INCHES NOMINAL SECOND END THIRD PORTION 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.