The Worm Shaft, cataloged under National Stock Number 3040-00-087-6533, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-087-6533 |
| Primary Part Number | 7660476 |
| 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 | TELESCOPE,PANORAMIC |
| Teeth Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| Worm Body Length | 2.251 INCHES NOMINAL IN |
| Worm Thread Lead | 0.098 INCHES NOMINAL IN |
| Thread Length | 0.170 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Worm Pitch Diameter | 0.560 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Worm Outside Diameter | 0.620 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Straight Unthreaded Section Diameter | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM FIRST END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 0.315 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 0.330 INCHES MINIMUM AND 0.340 INCHES MAXIMUM FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 0.400 INCHES MINIMUM AND 0.410 INCHES MAXIMUM SECOND END FIRST PORTION IN |
| End Similarity | NOT IDENTICAL |
| Shaft Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM LOCATION NOT OTHERWISE SPECIFIED |
| Screw Thread Series Designator | UNF BOTH ENDS |
| Worm Thread Section Length | 0.680 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Shaft Thread Direction | RIGHT-HAND SECOND END THIRD PORTION |
| Worm Helix Angle | 3 DEG 10 MIN |
| Material | STEEL |
| Worm Thread Quantity | 1 |
| Worm Thread Direction | LEFT-HAND |
| Worm Pressure Angle in Deg | 14.500 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM SECOND END SECOND PORTION IN |
| Straight Unthreaded Length | 0.669 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Straight Unthreaded Length | 0.781 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Length | 0.790 INCHES MAXIMUM SECOND END FIRST PORTION IN |
| Straight Unthreaded Length | 1.980 INCHES NOMINAL SECOND END FOURTH PORTION IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7660476 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| 7660476 | 5/9 Secondary reference Springfield Armory |
NSN 3040-00-087-6533 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 3040-00-087-6533 has 1 manufacturer part number on file: 7660476 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 7660476: Shaft Location: BOTH ENDS OF WORM; FSC Application Data: TELESCOPE,PANORAMIC; Teeth Hardness Rating: 33.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM; Worm Body Length: 2.251 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.
NSN 3040-00-087-6533 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.