The Kingpin,wheel Spindle, cataloged under National Stock Number 2530-00-075-0140, 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 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-075-0140 |
| Primary Part Number | 74912437-3 |
| Item Name | Kingpin,wheel Spindle |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Length | 4.893 INCHES NOMINAL IN |
| Threaded Securing End | NOT INCLUDED |
| Retaining Device Type | LOCKPIN SLOT |
| Diameter | 0.750 INCHES NOMINAL IN |
| Lubrication Fitting Threaded Hole | NOT INCLUDED |
| Casehardening Indicator | CASEHARDENED |
| Distance From Nearest End to Groove/slot Center | 2.200 INCHES NOMINAL IN |
| Depth | 0.750 INCHES NOMINAL IN |
| Width | 0.268 INCHES NOMINAL IN |
| Screwdriver Slotted End | INCLUDED |
| Material | STEEL |
| 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 |
|---|---|
| 74912437-3 PRIMARY | Kalmar AC Inc (USA) |
| 4912437-7 | Kalmar AC Inc (USA) |
| 74912437 | Kalmar AC Inc (USA) |
NSN 2530-00-075-0140 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 2530-00-075-0140 has 3 manufacturer part numbers on file: 74912437-3 (Kalmar AC Inc), 4912437-7 (Kalmar AC Inc), 74912437 (Kalmar AC Inc).
Key specifications for 74912437-3: Length: 4.893 INCHES NOMINAL IN; Threaded Securing End: NOT INCLUDED; Retaining Device Type: LOCKPIN SLOT; Diameter: 0.750 INCHES NOMINAL IN. 11 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.