The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-246-6147, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-246-6147 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Fourth Diameter From Head | 0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Head Height | 0.250 INCHES NOMINAL IN |
| Point Length | 0.200 INCHES NOMINAL IN |
| Fastener Length | 6.450 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | F-16,CAGEC 96214 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.050 INCHES NOMINAL IN |
| First Diameter From Head | 0.375 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.300 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN |
| Point Style | OVAL |
| Width Between Flats | 0.437 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 3 |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Distance From Largest Bearing Surface of Head to End of Fourth Diameter | 5.150 INCHES NOMINAL IN |
| Third Diameter From Head | 0.250 INCHES NOMINAL IN |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 595943-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-246-6147 is a Bolt,externally Relieved Body, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-246-6147: Fourth Diameter From Head: 0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Head Height: 0.250 INCHES NOMINAL IN; Point Length: 0.200 INCHES NOMINAL IN; Fastener Length: 6.450 INCHES NOMINAL IN. 21 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.