The Worm Shaft, cataloged under National Stock Number 3040-00-769-0836, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 27 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 | 3040-00-769-0836 |
| Primary Part Number | 10884262 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| FSC Application Data | MOUNT GUN,CAL..50 |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES |
| Teeth Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Worm Body Length | 1.958 INCHES NOMINAL IN |
| Thread Length | 0.545 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Material Document and Classification | QQ-S-624 ,COMPOSITION 4130 TO 4140 FED SPEC ALL MATERIAL RESPONSES |
| Worm Pitch Diameter | 0.890 INCHES MINIMUM AND 0.896 INCHES MAXIMUM IN |
| Worm Outside Diameter | 1.000 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.624 INCHES MINIMUM AND 0.625 INCHES MAXIMUM SECOND END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 0.750 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 1.124 INCHES MINIMUM AND 1.125 INCHES MAXIMUM FIRST END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 1.500 INCHES NOMINAL FIRST END THIRD PORTION IN |
| End Similarity | NOT IDENTICAL |
| Shaft Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM LOCATION NOT OTHERWISE SPECIFIED |
| Screw Thread Series Designator | UNF SECOND END |
| Surface Treatment | CADMIUM AND CHROMATE |
| Worm Thread Section Length | 1.958 INCHES NOMINAL IN |
| Shaft Thread Direction | RIGHT-HAND SECOND END SECOND PORTION |
| Material | STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL |
| Worm Thread Quantity | 1 |
| Worm Thread Direction | RIGHT-HAND |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 0.120 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Length | 0.250 INCHES NOMINAL FIRST END THIRD PORTION IN |
| Straight Unthreaded Length | 0.689 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Straight Unthreaded Length | 0.718 INCHES NOMINAL FIRST 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 |
|---|---|
| 10884262 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3040-00-769-0836 is a Worm Shaft, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-769-0836 has 1 manufacturer part number on file: 10884262 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 10884262: Shaft Location: BOTH ENDS OF WORM; FSC Application Data: MOUNT GUN,CAL..50; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES; Teeth Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM. 27 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.