The Ball Joint, cataloged under National Stock Number 3040-00-370-3121, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Sealand Power Industries, Inc. Dba Sealand Graphics. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-370-3121 |
| Primary Part Number | A35242 |
| Item Name | Ball Joint |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Sealand Power Industries, Inc. Dba Sealand Graphics |
| Status | ACTIVE |
| Ball End Connection Thread Provision | THREADED |
| Length | 1.250 INCHES NOMINAL IN |
| Ball End Thread Size and Series/type Designator | 5/16-24 UNF |
| Ball End Thread Direction | RIGHT |
| Socket End Connection Thread Provision | THREADED |
| Style Designator | SINGLE, RIGHT ANGLE, OPEN |
| Socket End Thread Direction | RIGHT |
| Height | 1.438 INCHES NOMINAL IN |
| Socket End Thread Location | INTERNAL |
| Material | STEEL |
| Ball End Thread Location | EXTERNAL |
| Socket End Thread Size and Series/type Designator | 5/16-24 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 |
|---|---|
| A35242 PRIMARY | Sealand Power Industries, Inc. Dba Sealand Graphics (USA) |
| Reference | Meaning |
|---|---|
| A35242 | 5/9 Secondary reference Incom Intl Inc Morse Controls Div |
| 55184 | 5/2 Secondary reference U.S. Government activity |
NSN 3040-00-370-3121 is a Ball Joint, manufactured by Sealand Power Industries, Inc. Dba Sealand Graphics, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-370-3121 has 1 manufacturer part number on file: A35242 (Sealand Power Industries, Inc. Dba Sealand Graphics).
1 possible match (shared part number, not a government interchangeability claim): 5315-01-259-0315. Verify interchangeability with system specifications before substitution.
Key specifications for A35242: Ball End Connection Thread Provision: THREADED; Length: 1.250 INCHES NOMINAL IN; Ball End Thread Size and Series/type Designator: 5/16-24 UNF; Ball End Thread Direction: RIGHT. 12 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.