The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-693-7490, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-693-7490 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.438 INCHES NOMINAL IN |
| Fastener Length | 4.500 INCHES NOMINAL IN |
| Concentric Hole Depth | 2.000 INCHES NOMINAL IN |
| Thread Length | 0.875 INCHES MINIMUM IN |
| Shank Unthreaded Hole Diameter | 0.156 INCHES NOMINAL FIRST HOLE IN |
| Style Designator | COUNTERBORE UNTHREADED |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Counterbore Depth | 0.750 INCHES NOMINAL IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.125 INCHES NOMINAL IN |
| Concentric Hole Diameter | 0.125 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 1020 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 4.312 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 |
|---|---|
| 800E62 | 3/9 Design control — primary reference Kersey / American Lafrance a Div of Figgie International Inc |
NSN 5306-00-693-7490 is a Bolt,internally Relieved Body, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-693-7490: Head Height: 0.438 INCHES NOMINAL IN; Fastener Length: 4.500 INCHES NOMINAL IN; Concentric Hole Depth: 2.000 INCHES NOMINAL IN; Thread Length: 0.875 INCHES MINIMUM IN. 17 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.