The Torsion Bar,suspension, cataloged under National Stock Number 2510-00-040-0858, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 27 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2510-00-040-0858 |
| Primary Part Number | 7359890 |
| Item Name | Torsion Bar,suspension |
| FSC / FSG | 2510 / 25 — Vehicular Cab, Body, and Frame Structural Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| First End Thread Direction | RIGHT-HAND |
| Cover Overall Length | 76.500 INCHES NOMINAL IN |
| First End Pitch Diameter | 2.850 INCHES NOMINAL IN |
| Second End Serration Length | 1.125 INCHES NOMINAL IN |
| First End Major Diameter | 2.845 INCHES NOMINAL IN |
| First End Thread Class | 2B |
| Second End Major Diameter | 2.750 INCHES NOMINAL IN |
| First End Thread Size | 1/2-20 |
| First End Thread Series/type Designator | UNF |
| First End Internal Thread Length | 0.875 INCHES NOMINAL IN |
| First End Teeth Quantity | 57 |
| First End Cross-Sectional Shape | SERRATED |
| Outside Diameter | 2.350 INCHES MINIMUM AND 2.370 INCHES MAXIMUM IN |
| First End Pressure Angle in Deg | 48.44 |
| Second End Pressure Angle in Deg | 48.44 |
| Bar End to Cover Largest Length | 3.000 INCHES NOMINAL IN |
| Cover Outside Diameter | 2.625 INCHES NOMINAL IN |
| First End Serration Length | 1.125 INCHES NOMINAL IN |
| Second End Chamfer Length | 0.875 INCHES NOMINAL IN |
| Twist Direction | CLOCKWISE |
| Construction | SOLID |
| Second End Cross-Sectional Shape | SERRATED |
| Material | STEEL |
| Solid Bar End Characteristic at First End | THREADED HOLE |
| Second End Pitch Diameter | 2.750 INCHES NOMINAL IN |
| Second End Teeth Quantity | 55 |
| Cover | PROVIDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7359890 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 2540000400858 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 2510-00-040-0858 is a Torsion Bar,suspension, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2510, Vehicular Cab, Body, and Frame Structural Components. Status: active.
NSN 2510-00-040-0858 has 1 manufacturer part number on file: 7359890 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7359890: First End Thread Direction: RIGHT-HAND; Cover Overall Length: 76.500 INCHES NOMINAL IN; First End Pitch Diameter: 2.850 INCHES NOMINAL IN; Second End Serration Length: 1.125 INCHES NOMINAL IN. 27 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.
NSN 2510-00-040-0858 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.