The Stud,ball, cataloged under National Stock Number 5307-00-660-3404, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-660-3404 |
| Item Name | Stud,ball |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Surface Finish | 250.0 MICROINCHES OVERALL |
| Thread Length | 0.156 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Style Designator | BALL |
| Material Document and Classification | MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Nominal Thread Size | 0.250 INCHES LOCATION NOT OTHERWISE SPECIFIED IN |
| Distance From Spherical Head Centerline to Head End | 0.094 INCHES NOMINAL IN |
| Thread Class | 2A LOCATION NOT OTHERWISE SPECIFIED A |
| Thread Quantity Per Inch | 28 LOCATION NOT OTHERWISE SPECIFIED |
| Material | STEEL COMP 303SE |
| Distance Across Flats | 0.312 INCHES NOMINAL IN |
| Thread Series Designator | UNF LOCATION NOT OTHERWISE SPECIFIED |
| Head Diameter | 0.187 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2389766 | 3/2 Design control — primary reference U.S. Government activity |
| 2389766 | 5/9 Secondary reference The Boeing Company |
NSN 5307-00-660-3404 is a Stud,ball, classified under FSC 5307, Studs. Status: active.
Key specifications for 5307-00-660-3404: Surface Finish: 250.0 MICROINCHES OVERALL; Thread Length: 0.156 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Style Designator: BALL; Material Document and Classification: MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE. 13 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.