The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-164-4457, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 11 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-164-4457 |
| Primary Part Number | ST3M744-3D8 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Fastener Length | 0.766 INCHES MINIMUM AND 0.786 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.256 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.070 INCHES MINIMUM AND 0.085 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.383 INCHES MINIMUM AND 0.389 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.648 INCHES MINIMUM AND 0.678 INCHES MAXIMUM FIRST HOLE 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 |
|---|---|
| ST3M744-3D8 | Heartland Precision Fasteners Inc (USA) |
| VCG0001-3D8 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M744-3D8 PRIMARY | The Boeing Company Div Defense (USA) |
| VS3174-3D8 | Howmet Global Fastening Systems Inc (USA) |
| AIC687-3D8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| PBF1265-3D8 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| MB154-3D8 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| MB154-3D8 | Hi-Shear Corporation (USA) |
| GS1015-3D8 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| ST3M744-3D8 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| S406-2D8 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| S406-3D8 | 5/9 Secondary reference U.S. Government activity |
| 122895-3D8 | 5/2 Secondary reference U.S. Government activity |
| VS3174-3D8 | 5/9 Secondary reference U.S. Government activity |
| 10116041 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5306-01-164-4457 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-164-4457 has 11 manufacturer part numbers on file: ST3M744-3D8 (Heartland Precision Fasteners Inc), VCG0001-3D8 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), ST3M744-3D8 (The Boeing Company Div Defense), VS3174-3D8 (Howmet Global Fastening Systems Inc), AIC687-3D8 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 6 more.
Key specifications for ST3M744-3D8: Head Height: 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Fastener Length: 0.766 INCHES MINIMUM AND 0.786 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.256 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN. 19 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.