The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-526-4009, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Heartland Precision Fasteners Inc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 12 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-526-4009 |
| Primary Part Number | HP7747-5H9 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Heartland Precision Fasteners Inc |
| Status | ACTIVE |
| Head Height | 0.187 INCHES NOMINAL IN |
| Fastener Length | 1.034 INCHES MINIMUM AND 1.081 INCHES MAXIMUM IN |
| Thread Length | 0.487 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM OVERALL IN |
| Criticality Code Justification | AGAV |
| Nominal Thread Diameter | 0.313 INCHES IN |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.563 INCHES NOMINAL IN |
| Head Minor Diameter | 0.517 INCHES NOMINAL IN |
| Grip Diameter | 0.311 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.910 INCHES MINIMUM AND 0.967 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 | Y |
| Part Number | Manufacturer |
|---|---|
| HP7747-5H9 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| ST3M747-5H9 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M747-5H9 PRIMARY | The Boeing Company Div Defense (USA) |
| SLB254-5H9 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| ST3M747-5H9 | Houston Precision Fasteners I Lp (USA) |
| AIC688-5H9 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GS1031-5H9 PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| MB155-5H9 PRIMARY | Hi-Shear Corporation (USA) |
| 122896-5H9 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| S397-5H9 | Huck International, Inc (USA) |
| PBF1266-5H9 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VCG0002-5H9 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| 122896-5H9 | 5/9 Secondary reference Sps Technologies Inc |
| 122896-5H9 | 3/2 Design control — primary reference U.S. Government activity |
| VS3191-5H9 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-526-4009 is a Bolt,close Tolerance, manufactured by Heartland Precision Fasteners Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-526-4009 has 12 manufacturer part numbers on file: HP7747-5H9 (Heartland Precision Fasteners Inc), ST3M747-5H9 (Fastener Innovation Technology, Inc. Dba F I T), ST3M747-5H9 (The Boeing Company Div Defense), SLB254-5H9 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), ST3M747-5H9 (Houston Precision Fasteners I Lp) and 7 more.
Key specifications for HP7747-5H9: Head Height: 0.187 INCHES NOMINAL IN; Fastener Length: 1.034 INCHES MINIMUM AND 1.081 INCHES MAXIMUM IN; Thread Length: 0.487 INCHES NOMINAL IN; Shank Unthreaded Hole Diameter: 0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM OVERALL IN. 15 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.