The Bolt,machine, cataloged under National Stock Number 5306-01-144-2187, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-144-2187 |
| Primary Part Number | SAE AS9568-06 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sae International Dba Sae International |
| 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 |
| Surface Finish | 32.0 MICROINCHES THREADS32.0 MICROINCHES THREADS |
| Extended Washer Thickness | 0.090 INCHES MINIMUM AND 0.090 INCHES MINIMUM AND 0.100 INCHES MAXIMUM0.100 INCHES MAXIMUM IN |
| Head Height | 0.388 INCHES NOMINAL0.388 INCHES NOMINAL IN |
| Fastener Length | 0.740 INCHES MINIMUM AND 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM0.760 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.562 INCHES NOMINAL0.562 INCHES NOMINAL IN |
| Thread Length | 0.632 INCHES MINIMUM AND 0.632 INCHES MINIMUM AND 0.672 INCHES MAXIMUM0.672 INCHES MAXIMUM IN |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL35.0 ROCKWELL C MAXIMUM OVERALL |
| 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 | 0.375 INCHES0.375 INCHES IN |
| Features Provided | FINISHED HEADFINISHED HEAD |
| Head Style | DOUBLE HEXAGON W/HOLEDOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Grip Length | 0.088 INCHES MINIMUM AND 0.088 INCHES MINIMUM AND 0.108 INCHES MAXIMUM0.108 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM0.439 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 130000 POUNDS PER SQUARE INCH130000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A3A |
| Thread Quantity Per Inch | 2424 |
| Material | IRON ALLOY 660 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 |
| Part Number | Manufacturer |
|---|---|
| SAE AS9568-06 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| MS9568-06 | 5/9 Secondary reference U.S. Government activity |
| MS9568-06 | 5/9 Secondary reference U.S. Government activity |
| SAE AS9568-06 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5306-01-144-2187 is a Bolt,machine, manufactured by Sae International Dba Sae International, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-144-2187 has 1 manufacturer part number on file: SAE AS9568-06 (Sae International Dba Sae International).
Key specifications for SAE AS9568-06: Surface Finish: 32.0 MICROINCHES GRIP32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD32.0 MICROINCHES BEARING SURFACE OF HEAD; Surface Finish: 32.0 MICROINCHES THREADS32.0 MICROINCHES THREADS; Extended Washer Thickness: 0.090 INCHES MINIMUM AND 0.090 INCHES MINIMUM AND 0.100 INCHES MAXIMUM0.100 INCHES MAXIMUM IN. 25 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.