The Tie Rod,steering, cataloged under National Stock Number 2530-01-178-6638, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-01-178-6638 |
| Item Name | Tie Rod,steering |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Status | ACTIVE |
| Body Diameter | 1.005 INCHES NOMINAL IN |
| Thread Length | 2.250 INCHES NOMINAL ALL ENDS IN |
| End Connection Type | PLAIN THREADED ALL ENDS |
| Shape | STRAIGHT |
| Thread Location | INTERNAL ALL ENDS |
| Thread Direction | LEFT-HAND FIRST END |
| Thread Direction | RIGHT-HAND SECOND END |
| Rod End Lock Clamp | NOT INCLUDED |
| Thread Size | 3/4-16 ALL ENDS |
| Construction | TUBULAR |
| Screw Thread Series Designator | NPT ALL ENDS |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SW16667M | 3/2 Design control — primary reference U.S. Government activity |
| 16667M | 5/9 Secondary reference U.S. Government activity |
NSN 2530-01-178-6638 is a Tie Rod,steering, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
Key specifications for 2530-01-178-6638: Body Diameter: 1.005 INCHES NOMINAL IN; Thread Length: 2.250 INCHES NOMINAL ALL ENDS IN; End Connection Type: PLAIN THREADED ALL ENDS; Shape: STRAIGHT. 12 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.