The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-020-3615, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-020-3615 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.150 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN |
| Fastener Length | 1.030 INCHES NOMINAL IN |
| Distance From Centerline to Flat | 0.240 INCHES NOMINAL IN |
| Thread Length | 0.460 INCHES NOMINAL IN |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.074 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE IN |
| First Diameter From Head | 0.410 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.470 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 0.570 INCHES NOMINAL IN |
| Head Style | DEE |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.400 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 3 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 8740 OVERALL |
| Third Diameter From Head | 0.306 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.910 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 0.750 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 |
|---|---|
| 68965-S | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-020-3615 is a Bolt,externally Relieved Body, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-020-3615: Head Height: 0.150 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN; Fastener Length: 1.030 INCHES NOMINAL IN; Distance From Centerline to Flat: 0.240 INCHES NOMINAL IN; Thread Length: 0.460 INCHES NOMINAL IN. 22 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.