The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-01-319-9436, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-319-9436 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 1.000 INCHES NOMINAL IN |
| Fastener Length | 15.000 INCHES NOMINAL IN |
| Internal Thread Length | 6.000 INCHES MINIMUM COUNTERBORE IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) COUNTERBORE |
| Internal Thread Direction | RIGHT-HAND COUNTERBORE |
| Shank Unthreaded Hole Diameter | 0.060 INCHES NOMINAL FIRST HOLE IN |
| Threads Per Inch | 6 COUNTERBORE |
| Style Designator | CONCENTRIC HOLE THREADED |
| Nominal Thread Diameter | 2.500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.500 INCHES COUNTERBORE IN |
| Width Between Flats | 0.174 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN |
| Internal Thread Class | 2B COUNTERBORE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 4 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 8.750 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 |
|---|---|
| 203-4678510 ITEM 20 | 3/2 Design control — primary reference U.S. Government activity |
| 30-11-7840 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-319-9436 is a Bolt,internally Relieved Body, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-319-9436: Head Height: 1.000 INCHES NOMINAL IN; Fastener Length: 15.000 INCHES NOMINAL IN; Internal Thread Length: 6.000 INCHES MINIMUM COUNTERBORE IN; Thread Series: UNIFIED NATIONAL COARSE (UNC) COUNTERBORE. 18 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.