The Cross Shaft,steering Gear, cataloged under National Stock Number 2530-01-664-4149, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track 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 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-01-664-4149 |
| Primary Part Number | 12543758 |
| Item Name | Cross Shaft,steering Gear |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Pin Diameter | 0.1200 INCHES NOMINAL IN |
| Spline Type | INVOLUTE |
| Teeth Quantity | 30 |
| Heat Treatment | QUENCHED AND TEMPERED |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | ASTM A304 ASSN STD SINGLE MATERIAL RESPONSE |
| Vehicle Identification Designator | M88A2 AND M88A1 |
| Vehicle Design Control Activity | 19207 |
| Material | STEEL COMP 4142H |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12543758 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 2530-01-664-4149 is a Cross Shaft,steering Gear, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-664-4149 has 1 manufacturer part number on file: 12543758 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12543758: Pin Diameter: 0.1200 INCHES NOMINAL IN; Spline Type: INVOLUTE; Teeth Quantity: 30; Heat Treatment: QUENCHED AND TEMPERED. 9 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.
NSN 2530-01-664-4149 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.