The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-188-7582, 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17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-188-7582 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.790 INCHES NOMINAL IN |
| Fastener Length | 4.500 INCHES NOMINAL IN |
| Thread Length | 1.630 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-286,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Point Chamfer Angle | 45.0 DEGREES NOMINAL |
| First Diameter From Head | 0.817 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Head Style | ROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.750 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.100 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 8 |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 2.000 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 |
|---|---|
| 4674116 ITEM 12 | 3/2 Design control — primary reference U.S. Government activity |
| 515-4674116 ITE M12 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-188-7582 is a Bolt,externally Relieved Body, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-188-7582: Head Height: 0.790 INCHES NOMINAL IN; Fastener Length: 4.500 INCHES NOMINAL IN; Thread Length: 1.630 INCHES NOMINAL IN; Material Document and Classification: QQ-N-286,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.