The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-034-3064, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-034-3064 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Fourth Diameter From Head | 0.315 INCHES MINIMUM IN |
| Head Height | 0.220 INCHES NOMINAL IN |
| Fastener Length | 2.250 INCHES NOMINAL IN |
| Thread Length | 0.590 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.079 INCHES MINIMUM AND 0.084 INCHES MAXIMUM FIRST HOLE IN |
| First Diameter From Head | 0.372 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.660 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 1.040 INCHES NOMINAL IN |
| Head Style | HEXAGON |
| Second Diameter From Head | 0.310 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.190 INCHES NOMINAL IN |
| Minimum Tensile Strength | 175000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Distance From Largest Bearing Surface of Head to End of Fourth Diameter | 1.660 INCHES NOMINAL IN |
| Third Diameter From Head | 0.372 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.126 INCHES NOMINAL FIRST HOLE 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 |
|---|---|
| 628927 | 5/9 Secondary reference Continental Aerospace Technologies, Inc. |
| 628927 | 3/9 Design control — primary reference Teledyne Industries Inc Teledyne Power Systems Div |
NSN 5306-00-034-3064 is a Bolt,externally Relieved Body, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-034-3064: Fourth Diameter From Head: 0.315 INCHES MINIMUM IN; Head Height: 0.220 INCHES NOMINAL IN; Fastener Length: 2.250 INCHES NOMINAL IN; Thread Length: 0.590 INCHES NOMINAL IN. 19 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.