The Bolt,shoulder, cataloged under National Stock Number 5306-00-620-6529, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-620-6529 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.400 INCHES NOMINAL IN |
| Fastener Length | 5.000 INCHES NOMINAL IN |
| Shoulder Length | 4.215 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.935 INCHES MINIMUM AND 0.936 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.600 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | ST-05-602 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Reference | Meaning |
|---|---|
| 3309048-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-620-6529 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-620-6529: Head Height: 0.400 INCHES NOMINAL IN; Fastener Length: 5.000 INCHES NOMINAL IN; Shoulder Length: 4.215 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.935 INCHES MINIMUM AND 0.936 INCHES MAXIMUM FIRST SHOULDER IN. 15 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.