The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-159-7584, 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15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-159-7584 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Extended Washer Thickness | 0.125 INCHES NOMINAL IN |
| Head Height | 0.531 INCHES NOMINAL IN |
| Fastener Length | 2.156 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.906 INCHES NOMINAL IN |
| Thread Length | 1.000 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.125 INCHES NOMINAL IN |
| Width Between Flats | 0.718 INCHES NOMINAL IN |
| Grip Diameter | 0.5312 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| RA22026-9A | 3/9 Design control — primary reference U.S. Government activity |
| RA22026-9A | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5306-01-159-7584 is a Bolt,close Tolerance, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-159-7584: Extended Washer Thickness: 0.125 INCHES NOMINAL IN; Head Height: 0.531 INCHES NOMINAL IN; Fastener Length: 2.156 INCHES NOMINAL IN; Extended Washer Diameter: 0.906 INCHES NOMINAL 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.