The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-166-9215, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-166-9215 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.250 INCHES NOMINAL IN |
| Fastener Length | 2.390 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | DS30000 FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Concentric Hole Depth | 1.850 INCHES NOMINAL IN |
| Thread Length | 0.540 INCHES MINIMUM IN |
| Shank Unthreaded Hole Diameter | 0.139 INCHES MINIMUM AND 0.145 INCHES MAXIMUM FIRST HOLE IN |
| Style Designator | CONCENTRIC HOLE UNTHREADED |
| Material Document and Classification | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.374 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL OVERALL |
| Minimum Tensile Strength | 280000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP H11 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.260 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 |
|---|---|
| 4J13360-111A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-166-9215 is a Bolt,internally Relieved Body, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-166-9215: Head Height: 0.250 INCHES NOMINAL IN; Fastener Length: 2.390 INCHES NOMINAL IN; Surface Treatment Document and Classification: DS30000 FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Concentric Hole Depth: 1.850 INCHES NOMINAL IN. 20 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.