The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-130-6562, 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 16 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-130-6562 |
| Primary Part Number | ST3M747-6-24 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.210 INCHES NOMINAL IN |
| Fastener Length | 2.000 INCHES MINIMUM AND 2.047 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.578 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN |
| Grip Diameter | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| 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 |
|---|---|
| ST3M747-6-24 | Heartland Precision Fasteners Inc (USA) |
| ST3M747-6-24 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M747-6-24 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| MB155-6-24 PRIMARY | Hi-Shear Corporation (USA) |
| PBF1266-6-24 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VCG0002-6-24 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MB155-6-24 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| AIC688-6-24 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GS1031-6-24 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| Reference | Meaning |
|---|---|
| S397-6-24 | 5/9 Secondary reference U.S. Government activity |
| S397-6-24 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| VS3191-6-24 | 5/9 Secondary reference U.S. Government activity |
| 122896-6-24 | 3/2 Design control — primary reference U.S. Government activity |
| VS3191-6-24 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| 10115808 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5306-01-130-6562 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-130-6562 has 9 manufacturer part numbers on file: ST3M747-6-24 (Heartland Precision Fasteners Inc), ST3M747-6-24 (The Boeing Company Div Defense), ST3M747-6-24 (Fastener Innovation Technology, Inc. Dba F I T), MB155-6-24 (Hi-Shear Corporation), PBF1266-6-24 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 4 more.
Key specifications for ST3M747-6-24: Head Height: 0.210 INCHES NOMINAL IN; Fastener Length: 2.000 INCHES MINIMUM AND 2.047 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN. 16 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.