The Bolt,machine, cataloged under National Stock Number 5306-01-135-2387, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-135-2387 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Extended Washer Thickness | 0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN |
| Head Height | 0.504 INCHES NOMINAL0.504 INCHES NOMINAL IN |
| Fastener Length | 2.750 INCHES NOMINAL2.750 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALLAMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN |
| Precious Material | SILVERSILVER |
| Thread Length | 1.250 INCHES MINIMUM AND 1.250 INCHES MINIMUM AND 1.310 INCHES MAXIMUM1.310 INCHES MAXIMUM IN |
| Hole Configuration Style | DOUBLE HEXAGON LONGITUDINAL HOLEDOUBLE HEXAGON LONGITUDINAL HOLE |
| Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALLAMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES0.500 INCHES IN |
| Features Provided | FINISHED HEADFINISHED HEAD |
| Head Style | DOUBLE HEXAGON W/HOLEDOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Specification/standard Data | 96906-MS9579 GOVERNMENT STANDARD96906-MS9579 GOVERNMENT STANDARD |
| Grip Length | 1.440 INCHES MINIMUM AND 1.440 INCHES MINIMUM AND 1.500 INCHES MAXIMUM1.500 INCHES MAXIMUM IN |
| Width Between Flats | 0.562 INCHES NOMINAL0.562 INCHES NOMINAL IN |
| Surface Treatment | SILVER OVERALLSILVER OVERALL |
| Thread Class | 3A3A |
| Thread Quantity Per Inch | 2020 |
| Material | IRON ALLOY OVERALL |
| Hole Quantity | 44 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF)UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLEDDRILLED |
| Hole Diameter | 0.070 INCHES NOMINAL0.070 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 |
|---|---|
| MS9579-27 | 2/2 Government specification standardization U.S. Government activity |
NSN 5306-01-135-2387 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-135-2387: Surface Finish: 32.0 MICROINCHES GRIP32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD32.0 MICROINCHES BEARING SURFACE OF HEAD; Extended Washer Thickness: 0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN; Head Height: 0.504 INCHES NOMINAL0.504 INCHES NOMINAL IN. 26 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.