The Seat,ball Socket, cataloged under National Stock Number 2530-01-155-7546, 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 8 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 | 2530-01-155-7546 |
| Primary Part Number | 11621578 |
| Item Name | Seat,ball Socket |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Flange Diameter | 1.810 INCHES MINIMUM AND 1.840 INCHES MAXIMUM IN |
| Material Hardness Rating | 60.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM |
| Radius | 0.395 INCHES NOMINAL IN |
| Style Designator | SEAT |
| Outside Diameter | 1.430 INCHES MINIMUM AND 1.460 INCHES MAXIMUM IN |
| Features Provided | CASEHARDENED |
| Material | STEEL |
| Ball Seat Depth | 0.120 INCHES NOMINAL IN |
| 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 |
|---|---|
| 11621578 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 2530-01-155-7546 is a Seat,ball Socket, 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 2530-01-155-7546 has 1 manufacturer part number on file: 11621578 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 11621578: Flange Diameter: 1.810 INCHES MINIMUM AND 1.840 INCHES MAXIMUM IN; Overall Height: 0.330 INCHES NOMINAL IN; Material Hardness Rating: 60.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM; Radius: 0.395 INCHES NOMINAL IN. 8 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.