The Bolt,internal Wrenching, cataloged under National Stock Number 5306-01-506-0207, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-506-0207 |
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Width Across Flats | 0.5005 INCHES MINIMUM AND 0.5035 INCHES MAXIMUM IN |
| Head Height | 0.625 INCHES NOMINAL IN |
| Fastener Length | 2.173 INCHES MINIMUM AND 2.203 INCHES MAXIMUM IN |
| Thread Length | 0.912 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | BEVEL-CONICAL |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS20010 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8735 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 1.040 INCHES MINIMUM AND 1.050 INCHES MAXIMUM 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 |
|---|---|
| MS20010-20 | 5/2 Secondary reference U.S. Government activity |
| MS20010-20 | 2/2 Government specification standardization U.S. Government activity |
NSN 5306-01-506-0207 is a Bolt,internal Wrenching, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-506-0207: Width Across Flats: 0.5005 INCHES MINIMUM AND 0.5035 INCHES MAXIMUM IN; Head Height: 0.625 INCHES NOMINAL IN; Fastener Length: 2.173 INCHES MINIMUM AND 2.203 INCHES MAXIMUM IN; Thread Length: 0.912 INCHES MINIMUM IN. 14 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.