The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-654-5661, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-654-5661 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Surface Finish | 0.8 MICROMETERS OVERALL |
| Point Diameter | 3.5 MILLIMETERS MINIMUM AND 4.0 MILLIMETERS MAXIMUM MM |
| Head Height | 2.7 MILLIMETERS MINIMUM AND 3.0 MILLIMETERS MAXIMUM MM |
| Fastener Length | 23.7 MILLIMETERS MINIMUM AND 24.3 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | AMS2700,METHOD 1,CLASS 4 NATIONAL STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 0.8 |
| Thread Length | 9.0 MILLIMETERS NOMINAL MM |
| Material Document and Classification | NA0026 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 5.0 MILLIMETERS MM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Specification/standard Data | 80205-NA0045 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 14.8 MILLIMETERS MINIMUM AND 15.2 MILLIMETERS MAXIMUM MM |
| Width Between Flats | 7.85 MILLIMETERS MINIMUM AND 8.00 MILLIMETERS MAXIMUM MM |
| Grip Diameter | 4.965 MILLIMETERS MINIMUM AND 4.990 MILLIMETERS MAXIMUM MM |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 1100 MEGAPASCALS |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 4H6H |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | MJ |
| 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 |
|---|---|
| NA0045-050006 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-654-5661 is a Bolt,close Tolerance, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-654-5661: Surface Finish: 0.8 MICROMETERS OVERALL; Point Diameter: 3.5 MILLIMETERS MINIMUM AND 4.0 MILLIMETERS MAXIMUM MM; Head Height: 2.7 MILLIMETERS MINIMUM AND 3.0 MILLIMETERS MAXIMUM MM; Fastener Length: 23.7 MILLIMETERS MINIMUM AND 24.3 MILLIMETERS MAXIMUM MM. 22 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.