The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-063-1549, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-063-1549 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.272 INCHES NOMINAL IN |
| Fastener Length | 0.405 INCHES NOMINAL IN |
| Thread Length | 1.125 INCHES NOMINAL IN |
| First Diameter From Head | 0.340 INCHES NOMINAL IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.612 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.720 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Material | STEEL COMP D6AC OVERALL |
| 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 |
|---|---|
| SM-C-804917 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-063-1549 is a Bolt,externally Relieved Body, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-063-1549: Head Height: 0.272 INCHES NOMINAL IN; Fastener Length: 0.405 INCHES NOMINAL IN; Thread Length: 1.125 INCHES NOMINAL IN; First Diameter From Head: 0.340 INCHES NOMINAL IN. 11 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.