The Worm Shaft, cataloged under National Stock Number 3040-00-899-6316, 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 23 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-899-6316 |
| Primary Part Number | 8262021 |
| 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 |
| FSC Application Data | QUADRANT,ELEVATION,ANTIAIRCRAFT FIRE CONTROL EQUIPMENT |
| Worm Body Length | 0.820 INCHES NOMINAL IN |
| Worm Thread Lead | 0.1666 INCHES NOMINAL IN |
| Thread Length | 0.330 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Worm Pitch Diameter | 0.647 INCHES NOMINAL IN |
| Worm Outside Diameter | 0.753 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.041 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 0.380 INCHES NOMINAL SECOND END FIRST PORTION IN |
| End Similarity | NOT IDENTICAL |
| Screw Thread Series Designator | UNF SECOND END SECOND PORTION |
| Surface Treatment | PASSIVATE |
| Worm Thread Section Length | 0.820 INCHES NOMINAL IN |
| Shaft Thread Direction | RIGHT-HAND SECOND END SECOND PORTION |
| Worm Helix Angle | 4 DEG 59 MIN |
| Material | STEEL CORROSION RESISTING |
| Worm Thread Quantity | 1 |
| Worm Thread Direction | RIGHT-HAND |
| Threaded Section Pin Hole Diameter | 0.094 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Worm Pressure Angle in Deg | 14.500 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 0.375 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Length | 0.825 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 |
|---|---|
| 8262021 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 3040-00-899-6316 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 3040-00-899-6316 has 1 manufacturer part number on file: 8262021 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
1 possible match (shared part number, not a government interchangeability claim): 1670-01-679-1633. Verify interchangeability with system specifications before substitution.
Key specifications for 8262021: Shaft Location: BOTH ENDS OF WORM; FSC Application Data: QUADRANT,ELEVATION,ANTIAIRCRAFT FIRE CONTROL EQUIPMENT; Worm Body Length: 0.820 INCHES NOMINAL IN; Worm Thread Lead: 0.1666 INCHES NOMINAL IN. 23 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.