The Shaft,straight, cataloged under National Stock Number 3040-01-264-5610, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Amfs American Fleet Services. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-264-5610 |
| Primary Part Number | 55-20-25-01 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Amfs American Fleet Services |
| Status | ACTIVE |
| First End Diameter | 1.2500 INCHES NOMINAL IN |
| Second End Diameter | 1.2500 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY |
| Second End Keyway Width | 0.3135 INCHES NOMINAL IN |
| First End Keyway Depth | 0.1770 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.1770 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | FLAT KEYWAY |
| Material | STEEL COMP 1018 |
| External Keyway Length | 1.500 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 3.000 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.3135 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 | X |
| Part Number | Manufacturer |
|---|---|
| 55-20-25-01 PRIMARY | Amfs American Fleet Services (USA) |
| 8SH-400 | Amfs American Fleet Services (USA) |
| Reference | Meaning |
|---|---|
| SH-400 | 5/9 Secondary reference Amfs American Fleet Services |
NSN 3040-01-264-5610 is a Shaft,straight, manufactured by Amfs American Fleet Services, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-264-5610 has 2 manufacturer part numbers on file: 55-20-25-01 (Amfs American Fleet Services), 8SH-400 (Amfs American Fleet Services).
Key specifications for 55-20-25-01: First End Diameter: 1.2500 INCHES NOMINAL IN; Second End Diameter: 1.2500 INCHES NOMINAL IN; First End Style: FLAT KEYWAY; Second End Keyway Width: 0.3135 INCHES NOMINAL IN. 12 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.