The Bolt,machine, cataloged under National Stock Number 5306-00-255-6916, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-255-6916 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Extended Washer Thickness | 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN |
| Head Height | 0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Fastener Length | 1.845 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN |
| Thread Length | 0.510 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.335 INCHES NOMINAL IN |
| Width Between Flats | 0.308 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 190000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| 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 | X |
| Reference | Meaning |
|---|---|
| 5389-10 | 3/2 Design control — primary reference U.S. Government activity |
| 538910 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5306-00-255-6916 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-255-6916: Extended Washer Thickness: 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN; Head Height: 0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Fastener Length: 1.845 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN; Extended Washer Diameter: 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN. 17 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.