The Worm Shaft, cataloged under National Stock Number 3040-00-546-9740, 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 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-546-9740 |
| Primary Part Number | 8299673 |
| 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 | BOTH ENDS OF WORM |
| Bearing Quantity | 1 |
| Worm Thread Lead | 0.001 INCHES NOMINAL IN |
| Worm Outside Diameter | 2.360 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.250 INCHES NOMINAL BOTH ENDS IN |
| End Similarity | IDENTICAL |
| Bearing Type | BALL |
| Worm Helix Angle | 4 DEG |
| Material | STEEL CORROSION RESISTING |
| Worm Thread Quantity | 5 OR 6 |
| Worm Thread Direction | RIGHT-HAND |
| Worm Pressure Angle in Deg | 4.000 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Bearing Diameter | 0.437 INCHES NOMINAL IN |
| Straight Unthreaded Length | 0.457 INCHES NOMINAL FIRST END IN |
| Straight Unthreaded Length | 0.519 INCHES NOMINAL SECOND END 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 |
|---|---|
| 8299673 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 3040-00-546-9740 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 3040-00-546-9740 has 1 manufacturer part number on file: 8299673 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 8299673: Shaft Location: BOTH ENDS OF WORM; Bearing Quantity: 1; Worm Thread Lead: 0.001 INCHES NOMINAL IN; Overall Length: 2.360 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.