The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-547-9922, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-547-9922 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.380 INCHES NOMINAL IN |
| Fastener Length | 1.440 INCHES NOMINAL IN |
| Thread Length | 1.329 INCHES MINIMUM IN |
| Style Designator | COUNTERBORE UNTHREADED |
| Material Document and Classification | MIL-S-5626,COND C4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.562 INCHES IN |
| Counterbore Depth | 0.280 INCHES NOMINAL IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Counterbore Diameter | 0.378 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.250 INCHES NOMINAL IN |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.687 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 |
|---|---|
| 728541-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-547-9922 is a Bolt,internally Relieved Body, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-547-9922: Head Height: 0.380 INCHES NOMINAL IN; Fastener Length: 1.440 INCHES NOMINAL IN; Thread Length: 1.329 INCHES MINIMUM IN; Style Designator: COUNTERBORE UNTHREADED. 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.