The Bolt,machine, cataloged under National Stock Number 5306-00-902-2020, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-902-2020 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.400 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN |
| Fastener Length | 10.000 INCHES NOMINAL IN |
| Thread Length | 4.000 INCHES MINIMUM IN |
| Hardness Rating | 95.0 ROCKWELL B MAXIMUM OVERALL |
| Material Document and Classification | SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Features Provided | UNFINISHED HEAD |
| Head Style | SQUARE |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Document | AS MODIFIED BY THD LG |
| Grip Length | 6.000 INCHES NOMINAL IN |
| Width Between Flats | 0.906 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 1 TYPE |
| Surface Treatment | ZINC OVERALL |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 11 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| FFB575 | 4/1 Identification reference U.S. Government activity |
NSN 5306-00-902-2020 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-902-2020: Head Height: 0.400 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN; Fastener Length: 10.000 INCHES NOMINAL IN; Thread Length: 4.000 INCHES MINIMUM IN; Hardness Rating: 95.0 ROCKWELL B MAXIMUM OVERALL. 19 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.