The Bolt,machine, cataloged under National Stock Number 5306-00-455-2573, 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14 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-455-2573 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.328 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| Fastener Length | 6.000 INCHES MINIMUM AND 6.047 INCHES MAXIMUM IN |
| Thread Length | 0.922 INCHES MINIMUM AND 1.001 INCHES MAXIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Grip Length | 5.046 INCHES MINIMUM AND 5.078 INCHES MAXIMUM IN |
| Width Between Flats | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Reference | Meaning |
|---|---|
| AN10-57A | 2/2 Government specification standardization U.S. Government activity |
| AN10-57A | 5/1 Secondary reference Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| AN10-57A | 5/1 Secondary reference Lfc Industries, Inc. |
| AN10-57A | 5/1 Secondary reference Mac Fasteners, Inc. Dba Mac Fasteners Inc |
| AN10-57A | 5/1 Secondary reference California Screw Products Corp. |
NSN 5306-00-455-2573 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-455-2573: Head Height: 0.328 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN; Fastener Length: 6.000 INCHES MINIMUM AND 6.047 INCHES MAXIMUM IN; Thread Length: 0.922 INCHES MINIMUM AND 1.001 INCHES MAXIMUM IN; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL. 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.