The Torsion Bar,suspension, cataloged under National Stock Number 2510-01-643-7381, 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 Southco, Inc. Dba Southco Counterbalance Division - Pa Div Southco Counterbalance Division - Pa. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Torsion Bar,suspension |
| FSC / FSG | 2510 — Vehicular Cab, Body, and Frame Structural Components (FSG 25) |
| Manufacturers | Southco, Inc. Dba Southco Counterbalance Division - Pa Div Southco Counterbalance Division - Pa (CAGE 4WWH5) |
| Parameter | Value |
|---|---|
| NSN | 2510-01-643-7381 |
| Primary Part Number | K3111 |
| Item Name | Torsion Bar,suspension |
| FSC / FSG | 2510 / 25 — Vehicular Cab, Body, and Frame Structural Components |
| Manufacturer | Southco, Inc. Dba Southco Counterbalance Division - Pa Div Southco Counterbalance Division - Pa |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| K3111 PRIMARY | Southco, Inc. Dba Southco Counterbalance Division - Pa Div Southco Counterbalance Division - Pa (USA) |
| Reference | Meaning |
|---|---|
| 12578089 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 2510-01-643-7381 is a Torsion Bar,suspension, manufactured by Southco, Inc. Dba Southco Counterbalance Division - Pa Div Southco Counterbalance Division - Pa, classified under FSC 2510, Vehicular Cab, Body, and Frame Structural Components. Status: active.
NSN 2510-01-643-7381 has 1 manufacturer part number on file: K3111 (Southco, Inc. Dba Southco Counterbalance Division - Pa Div Southco Counterbalance Division - Pa).
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 2510-01-643-7381 has DEMIL Code Q. 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.