The Torsion Bar,suspension, cataloged under National Stock Number 2510-00-918-4178, is classified within Federal Supply Class 2510 (Vehicular Cab, Body, and Frame Structural Components) of the Vehicular Equipment Components group. The manufacturer of record is Amz Alabama Inc. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2510-00-918-4178 |
| Primary Part Number | 4471859-1 |
| Item Name | Torsion Bar,suspension |
| FSC / FSG | 2510 / 25 — Vehicular Cab, Body, and Frame Structural Components |
| Manufacturer | Amz Alabama Inc |
| Status | ACTIVE |
| First End Pitch Diameter | 2.187 INCHES NOMINAL IN |
| Second End Serration Length | 0.938 INCHES NOMINAL IN |
| First End Major Diameter | 2.245 INCHES MINIMUM AND 2.255 INCHES MAXIMUM IN |
| Second End Major Diameter | 2.245 INCHES MINIMUM AND 2.255 INCHES MAXIMUM IN |
| First End Teeth Quantity | 35 |
| First End Cross-Sectional Shape | SERRATED |
| Outside Diameter | 1.705 INCHES NOMINAL IN |
| First End Pressure Angle in Deg | 45.00 |
| Second End Pressure Angle in Deg | 45.00 |
| Inside Diameter | 0.080 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| First End Serration Length | 0.938 INCHES NOMINAL IN |
| Second End Chamfer Length | 0.188 INCHES NOMINAL IN |
| First End Chamfer Length | 0.625 INCHES NOMINAL IN |
| Twist Direction | COUNTERCLOCKWISE |
| Construction | TUBULAR |
| Second End Cross-Sectional Shape | SERRATED |
| Material | STEEL |
| Second End Pitch Diameter | 2.187 INCHES NOMINAL IN |
| Second End Teeth Quantity | 35 |
| Cover | NOT PROVIDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 2510-00-918-4178 is a Torsion Bar,suspension, manufactured by Amz Alabama Inc, classified under FSC 2510, Vehicular Cab, Body, and Frame Structural Components. Status: active.
NSN 2510-00-918-4178 has 2 manufacturer part numbers on file: 4471859-1 (Amz Alabama Inc.), 4471859-1 (Amz Alabama Inc).
Key specifications for 4471859-1: First End Pitch Diameter: 2.187 INCHES NOMINAL IN; Second End Serration Length: 0.938 INCHES NOMINAL IN; First End Major Diameter: 2.245 INCHES MINIMUM AND 2.255 INCHES MAXIMUM IN; Second End Major Diameter: 2.245 INCHES MINIMUM AND 2.255 INCHES MAXIMUM IN. 20 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.