The Torsion Bar,hinge, cataloged under National Stock Number 5340-01-553-4666, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Southco, Inc. Dba Southco Counterbalance Division - Pa Div Southco Counterbalance Division - Pa. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-553-4666 |
| Primary Part Number | 12503750 |
| Item Name | Torsion Bar,hinge |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Southco, Inc. Dba Southco Counterbalance Division - Pa Div Southco Counterbalance Division - Pa |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
NSN 5340-01-553-4666 is a Torsion Bar,hinge, manufactured by Southco, Inc. Dba Southco Counterbalance Division - Pa Div Southco Counterbalance Division - Pa, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-553-4666 has 2 manufacturer part numbers on file: 136919-2 (Cadillac Gage Textron Inc.), 12503750 (Southco, Inc. Dba Southco Counterbalance Division - Pa Div Southco Counterbalance Division - Pa).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-570-6542. Verify interchangeability with system specifications before substitution.
Key specifications for 12503750: Special Features: DRIVER SIDE; End Item Identification: 2320-01-437-6957 ARMORED SECURITY VEHICLE,M1117. 0 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.