The Kingpin,wheel Spindle, cataloged under National Stock Number 2530-00-358-9570, 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 Kalmar AC Inc. Government technical data includes 13 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 | 2530-00-358-9570 |
| Primary Part Number | 4734077-3 |
| Item Name | Kingpin,wheel Spindle |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Length | 4.313 INCHES NOMINAL IN |
| Threaded Securing End | NOT INCLUDED |
| Retaining Device Type | LOCKPIN SLOT |
| Material Document and Classification | SAE 4140 ASSN STD 1ST MATERIAL RESPONSE |
| Diameter | 0.9836 INCHES MINIMUM AND 0.9840 INCHES MAXIMUM IN |
| Lubrication Fitting Threaded Hole | NOT INCLUDED |
| Casehardening Indicator | CASEHARDENED |
| Distance From Nearest End to Groove/slot Center | 1.594 INCHES NOMINAL IN |
| Depth | 0.063 INCHES NOMINAL IN |
| Width | 0.375 INCHES NOMINAL IN |
| Screwdriver Slotted End | NOT INCLUDED |
| Material | STEEL COMP 4140 |
| Metallic Hardness Rating | 34.0 MINIMUM ROCKWELL C AND 37.0 MAXIMUM ROCKWELL C |
| 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 |
|---|---|
| 4734077-3 PRIMARY | Kalmar AC Inc (USA) |
NSN 2530-00-358-9570 is a Kingpin,wheel Spindle, manufactured by Kalmar AC Inc, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-358-9570 has 1 manufacturer part number on file: 4734077-3 (Kalmar AC Inc).
Key specifications for 4734077-3: Length: 4.313 INCHES NOMINAL IN; Threaded Securing End: NOT INCLUDED; Retaining Device Type: LOCKPIN SLOT; Material Document and Classification: SAE 4140 ASSN STD 1ST MATERIAL RESPONSE. 13 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.