The Bolt,machine, cataloged under National Stock Number 5306-01-448-6198, 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22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-448-6198 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.281 INCHES NOMINAL IN |
| Fastener Length | 1.453 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 1.393 INCHES MINIMUM AND 1.470 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | HEXAGON LONGITUDINAL HOLE |
| Material Document and Classification | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS566 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Width Between Flats | 0.552 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4140 OR STEEL COMP 4130 OVERALL |
| Hole Quantity | 6 |
| Thread Series Designator | UNF |
| Hole Type | DRILLED |
| Hole Diameter | 0.070 INCHES NOMINAL IN |
| 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 |
|---|---|
| NAS566-47 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-448-6198 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-448-6198: Head Height: 0.281 INCHES NOMINAL IN; Fastener Length: 1.453 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Length: 1.393 INCHES MINIMUM AND 1.470 INCHES MAXIMUM IN. 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.