The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-568-9422, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-568-9422 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Extended Washer Thickness | 0.017 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN |
| Head Height | 0.205 INCHES NOMINAL IN |
| Fastener Length | 0.610 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.349 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN |
| Thread Length | 0.408 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.188 INCHES NOMINAL IN |
| Head Minor Diameter | 0.173 INCHES MINIMUM IN |
| Grip Diameter | 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP H11 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 |
|---|---|
| MS21297-03003 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-568-9422 is a Bolt,close Tolerance, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-568-9422: Extended Washer Thickness: 0.017 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN; Head Height: 0.205 INCHES NOMINAL IN; Fastener Length: 0.610 INCHES NOMINAL IN; Extended Washer Diameter: 0.349 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN. 16 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.