The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-249-9629, 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 17 specifications, cited from the U.S. Government catalog. The record lists 13 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-249-9629 |
| Primary Part Number | ST3M744-3-12 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.140 INCHES NOMINAL IN |
| Fastener Length | 1.016 INCHES MINIMUM AND 1.036 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 |
| Material Document and Classification | AMS5629 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 | 0.740 INCHES MINIMUM AND 0.760 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) |
| 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 |
|---|---|
| ST3M744-3-12 | Hi-Shear Corporation (USA) |
| ST3M744-3-12 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M744-3-12 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VCG0001-3-12 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M744-3-12 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| AIC687-3-12 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| VS3174-3-12 | Howmet Global Fastening Systems Inc (USA) |
| ST3M744-3-12 PRIMARY | The Boeing Company Div Defense (USA) |
| MB154-3-12 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M744-3-12 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MB154-3-12 | Hi-Shear Corporation (USA) |
| S406-3-12 | Huck International, Inc (USA) |
| PBF1265-3-12 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| ST3M744-3-12 | 5/2 Secondary reference U.S. Government activity |
| VS3174-3-12 | 5/9 Secondary reference U.S. Government activity |
| ST3M744-3-12 | 5/2 Secondary reference U.S. Government activity |
| 122895-3-12 | 5/2 Secondary reference U.S. Government activity |
| S406-3-12 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-249-9629 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-249-9629 has 13 manufacturer part numbers on file: ST3M744-3-12 (Hi-Shear Corporation), ST3M744-3-12 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), ST3M744-3-12 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), VCG0001-3-12 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), ST3M744-3-12 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries) and 8 more.
Key specifications for ST3M744-3-12: Head Height: 0.140 INCHES NOMINAL IN; Fastener Length: 1.016 INCHES MINIMUM AND 1.036 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. 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.