The Bolt,machine, cataloged under National Stock Number 5306-00-266-0249, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-266-0249 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Fastener Length | 3.000 INCHES NOMINAL IN |
| Thread Length | 1.938 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Features Provided | UNFINISHED HEAD |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Minimum Yield Strength | 30000 POUNDS PER SQUARE INCH LBS |
| Countersink Angle | 78.0 DEGREES NOMINAL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 9 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 1.584 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 |
|---|---|
| FFB571AMEND1CLASSBSTEELTYPEA1NUT | 4/1 Identification reference U.S. Government activity |
NSN 5306-00-266-0249 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-266-0249: Fastener Length: 3.000 INCHES NOMINAL IN; Thread Length: 1.938 INCHES MINIMUM IN; Nominal Thread Diameter: 0.875 INCHES IN; Features Provided: UNFINISHED HEAD. 13 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.