The Ball Joint, cataloged under National Stock Number 3040-01-053-4865, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Kalmar AC Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-053-4865 |
| Primary Part Number | 4838418-4 |
| Item Name | Ball Joint |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Ball End Connection Thread Provision | THREADED |
| Ball End Thread Size and Series/type Designator | 11/16-18 UNS |
| Ball End Thread Direction | RIGHT |
| Socket End Connection Thread Provision | THREADED |
| Style Designator | SINGLE, RIGHT ANGLE, PLUGGED |
| Socket End Thread Direction | RIGHT |
| Height | 2.490 INCHES NOMINAL IN |
| Socket End Thread Location | EXTERNAL |
| Ball End Thread Location | EXTERNAL |
| Socket End Thread Size and Series/type Designator | 9/16-18 UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4838418-4 | Kalmar AC Inc (USA) |
| Reference | Meaning |
|---|---|
| S23417J | 3/9 Design control — primary reference Columbus Auto Parts Co |
| 4838418 | D/9 Drawing number reference only Kalmar AC Inc |
NSN 3040-01-053-4865 is a Ball Joint, manufactured by Kalmar AC Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-053-4865 has 1 manufacturer part number on file: 4838418-4 (Kalmar AC Inc).
Key specifications for 4838418-4: Ball End Connection Thread Provision: THREADED; Ball End Thread Size and Series/type Designator: 11/16-18 UNS; Ball End Thread Direction: RIGHT; Socket End Connection Thread Provision: THREADED. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.