The Arm,steering Gear, cataloged under National Stock Number 2530-00-618-4600, 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 Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-618-4600 |
| Primary Part Number | 503768 |
| Item Name | Arm,steering Gear |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems |
| Status | ACTIVE |
| Drag Link End Characteristic | W/BALL STUD BORE |
| Sector Shaft Mounting End Overall Thickness | 1.125 INCHES NOMINAL IN |
| Taper | 1.688 PER FOOT IN INCHES NOMINAL |
| Teeth Quantity | 36 |
| Bore Taper | 1.500 PER FOOT IN INCHES NOMINAL |
| Bore Length | 1.125 INCHES NOMINAL IN |
| Sector Shaft Mounting End Overall Width | 2.250 INCHES NOMINAL IN |
| Design Type | STRAIGHT |
| Sector Shaft Mounting End Serrated Bore | INCLUDED |
| Small End Major Diameter | 1.250 INCHES NOMINAL IN |
| Teeth Cut Angle in Deg | ANY ACCEPTABLE |
| Bore Smallest Diameter | 0.723 INCHES MINIMUM AND 0.725 INCHES MAXIMUM IN |
| Center to Center Distance Between Ball/ball Stud Hole and Sector Shaft Bore | 4.875 INCHES NOMINAL IN |
| Counterbore Feature | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6184600 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 503768 PRIMARY | Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems (USA) |
| 10WB01370 | Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA) |
| Reference | Meaning |
|---|---|
| 10WB01370 | 5/9 Secondary reference White Motor Corp |
| 401296 | 5/9 Secondary reference Spalla Inc |
| 401296 | 5/9 Secondary reference White Motor Corp |
NSN 2530-00-618-4600 is a Arm,steering Gear, manufactured by Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-618-4600 has 3 manufacturer part numbers on file: 6184600 (U S Army Tank Automotive Command Amsta-Im-Mm), 503768 (Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems), 10WB01370 (Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.)).
2 possible matches (shared part number, not a government interchangeability claim): 5365-01-250-6267, 5331-01-521-9958. Verify interchangeability with system specifications before substitution.
Key specifications for 503768: Drag Link End Characteristic: W/BALL STUD BORE; Sector Shaft Mounting End Overall Thickness: 1.125 INCHES NOMINAL IN; Taper: 1.688 PER FOOT IN INCHES NOMINAL; Teeth Quantity: 36. 14 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.