The Shaft,straight, cataloged under National Stock Number 3040-01-083-5642, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-083-5642 |
| Primary Part Number | 12284018 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Second End Hole Diameter | 0.1930 INCHES NOMINAL IN |
| First End Diameter | 0.3120 INCHES NOMINAL IN |
| Second End Diameter | 0.3120 INCHES NOMINAL IN |
| Second End Step Length | 3.620 INCHES NOMINAL IN |
| First End Style | UNTHREADED CROSS DRILLED |
| Criticality Code Justification | FEAT |
| Material Document and Classification | ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Distance From Hole Center to End | 0.220 INCHES NOMINAL IN |
| Second End Hole Depth | 0.187 INCHES NOMINAL IN |
| Second End Tongue Width | 0.312 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Tongue Thickness | 0.187 INCHES NOMINAL IN |
| First End Hole Diameter | 0.1250 INCHES NOMINAL IN |
| Second End Style | TONGUE AND CROSS DRILLED HOLE |
| Material | STEEL COMP 4140 OR STEEL COMP 8640 |
| First End Distance From Hole Center to End | 0.310 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 12284018 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| XM69476 | 5/9 Secondary reference General Dynamics Land Systems Inc. |
NSN 3040-01-083-5642 is a Shaft,straight, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-083-5642 has 1 manufacturer part number on file: 12284018 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12284018: Second End Hole Diameter: 0.1930 INCHES NOMINAL IN; First End Diameter: 0.3120 INCHES NOMINAL IN; Second End Diameter: 0.3120 INCHES NOMINAL IN; Second End Step Length: 3.620 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.