The Shaft,axle,automotive, cataloged under National Stock Number 2520-00-103-5604, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.. Government technical data includes 22 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 | 2520-00-103-5604 |
| Primary Part Number | B7589-2 |
| Item Name | Shaft,axle,automotive |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. |
| Status | ACTIVE |
| Second End Type | SPLINED |
| First End Pitch Diameter | 2.1875 INCHES NOMINAL IN |
| First End Type | SPLINED |
| First End Facility Diameter | 2.115 INCHES MINIMUM AND 2.120 INCHES MAXIMUM IN |
| Second End Spline Quantity | 35 |
| Second End Bearing Seat | NOT INCLUDED |
| Second End Facility Width | 0.250 INCHES NOMINAL IN |
| First End Facility Width | 0.500 INCHES NOMINAL IN |
| First End Spline Pressure Angle in Deg | 30.0 |
| Second End Facility Location | LOCATED AT SHAFT END |
| First End Spline Quantity | 35 |
| First End Facility Location | LOCATED AT SHAFT END |
| Second End Spline Pressure Angle in Deg | 30.0 |
| First End Spline Length | 2.438 INCHES NOMINAL IN |
| First End Spline Type | INVOLUTE |
| Second End Spline Type | INVOLUTE |
| Second End Facility Diameter | 2.115 INCHES MINIMUM AND 2.120 INCHES MAXIMUM IN |
| Material | STEEL |
| First End Bearing Seat | NOT INCLUDED |
| Metallic Hardness Rating | 40.0 MINIMUM ROCKWELL C AND 47.0 MAXIMUM ROCKWELL C |
| Second End Pitch Diameter | 2.1875 INCHES NOMINAL IN |
| Second End Spline Length | 1.875 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| B7589-2 PRIMARY | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA) |
NSN 2520-00-103-5604 is a Shaft,axle,automotive, manufactured by Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp., classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-103-5604 has 1 manufacturer part number on file: B7589-2 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.).
Key specifications for B7589-2: Second End Type: SPLINED; First End Pitch Diameter: 2.1875 INCHES NOMINAL IN; First End Type: SPLINED; First End Facility Diameter: 2.115 INCHES MINIMUM AND 2.120 INCHES MAXIMUM IN. 22 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.