The Bolt,shear, cataloged under National Stock Number 5306-01-491-9428, 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14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-491-9428 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.3120 INCHES MINIMUM AND 0.3270 INCHES MAXIMUM IN |
| Fastener Length | 0.0160 INCHES MINIMUM AND 0.1852 INCHES MAXIMUM IN |
| Thread Length | 0.9020 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.6250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.9180 INCHES MINIMUM AND 0.9500 INCHES MAXIMUM IN |
| Width Between Flats | 0.9280 INCHES MINIMUM AND 0.9400 INCHES MAXIMUM IN |
| Grip Diameter | 0.6235 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| NAS6710DU28 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-491-9428 is a Bolt,shear, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-491-9428: Head Height: 0.3120 INCHES MINIMUM AND 0.3270 INCHES MAXIMUM IN; Fastener Length: 0.0160 INCHES MINIMUM AND 0.1852 INCHES MAXIMUM IN; Thread Length: 0.9020 INCHES NOMINAL IN; Nominal Thread Diameter: 0.6250 INCHES 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.