The Bolt,machine, cataloged under National Stock Number 5306-01-133-4451, 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 24 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-133-4451 |
| Primary Part Number | MS9686-56 |
| 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 THREADS32.0 MICROINCHES THREADS |
| Head Height | 0.167 INCHES MINIMUM AND 0.167 INCHES MINIMUM AND 0.183 INCHES MAXIMUM0.183 INCHES MAXIMUM IN |
| Fastener Length | 5.240 INCHES MINIMUM AND 5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM5.260 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALLAMS2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.740 INCHES MINIMUM AND 0.740 INCHES MINIMUM AND 0.820 INCHES MAXIMUM0.820 INCHES MAXIMUM IN |
| Hardness Rating | 42.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM OVERALL46.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | HEXAGON FLATSHEXAGON FLATS |
| Material Document and Classification | AMS6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALLAMS6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES0.250 INCHES IN |
| Features Provided | FINISHED HEADFINISHED HEAD |
| Head Style | HEXAGONHEXAGON |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Grip Length | 4.440 INCHES MINIMUM AND 4.440 INCHES MINIMUM AND 4.500 INCHES MAXIMUM4.500 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM0.439 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL AND NICKEL AND CADMIUM AND CADMIUM AND CHROMATE OVERALLCHROMATE OVERALL |
| Minimum Tensile Strength | 195000 POUNDS PER SQUARE INCH195000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A3A |
| Thread Quantity Per Inch | 2828 |
| Material | STEEL COMP 601 OVERALL |
| Hole Quantity | 11 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF)UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLEDDRILLED |
| Hole Diameter | 0.060 INCHES MINIMUM AND 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM0.070 INCHES MAXIMUM 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 |
|---|---|
| MS9686-56 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| MS9686-56 | 5/9 Secondary reference U.S. Government activity |
| MS9686-56 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5306-01-133-4451 is a Bolt,machine, manufactured by Sae International Dba Sae International, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-133-4451 has 1 manufacturer part number on file: MS9686-56 (Sae International Dba Sae International).
Key specifications for MS9686-56: Surface Finish: 32.0 MICROINCHES GRIP32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES THREADS32.0 MICROINCHES THREADS; Head Height: 0.167 INCHES MINIMUM AND 0.167 INCHES MINIMUM AND 0.183 INCHES MAXIMUM0.183 INCHES MAXIMUM IN; Fastener Length: 5.240 INCHES MINIMUM AND 5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM5.260 INCHES MAXIMUM IN. 24 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.