The Shaft,shouldered, cataloged under National Stock Number 3040-00-678-3255, 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 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-678-3255 |
| Primary Part Number | 8761287 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Step Quantity | 4 |
| First End Diameter | 1.1450 INCHES MINIMUM AND 1.1500 INCHES MAXIMUM IN |
| Largest Step Diameter | 1.200 INCHES MINIMUM AND 1.202 INCHES MAXIMUM IN |
| First End Style | SPLINED (STRAIGHT) |
| First End Spline Length | 1.000 INCHES MINIMUM AND 1.040 INCHES MAXIMUM IN |
| End Similarity | IDENTICAL |
| First End Spline Minor Diameter | 0.9990 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN |
| Material | STEEL COMP 8620 OR STEEL COMP 8720 |
| 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 |
|---|---|
| 8761287 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 2930006783255 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 3040-00-678-3255 is a Shaft,shouldered, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-678-3255 has 1 manufacturer part number on file: 8761287 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8761287: Step Quantity: 4; First End Diameter: 1.1450 INCHES MINIMUM AND 1.1500 INCHES MAXIMUM IN; Largest Step Diameter: 1.200 INCHES MINIMUM AND 1.202 INCHES MAXIMUM IN; First End Style: SPLINED (STRAIGHT). 8 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.