The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-476-9161, 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 18 specifications, cited from the U.S. Government catalog. The record lists 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-476-9161 |
| Primary Part Number | HP7747-14-40 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Heartland Precision Fasteners Inc |
| Status | ACTIVE |
| Head Height | 0.350 INCHES NOMINAL IN |
| Fastener Length | 3.261 INCHES MINIMUM AND 3.308 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 5629 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.777 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN |
| Head Minor Diameter | 1.112 INCHES MINIMUM AND 1.124 INCHES MAXIMUM IN |
| Grip Diameter | 0.922 INCHES MINIMUM AND 0.954 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| 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 | Y |
| Part Number | Manufacturer |
|---|---|
| HP7747-14-40 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| S397-10-10 PRIMARY | Huck International, Inc (USA) |
| MB155-10-40 PRIMARY | Hi-Shear Corporation (USA) |
| ST3M747-10-40 | Houston Precision Fasteners I Lp (USA) |
| ST3M747-10-40 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 11833-10-40 | Reid Products Inc. Dba Reid Products Inc (USA) |
| GS1031-10-40 PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| AIC688-10-40 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| PBF1266-10-40 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| SLB254-10-40 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| S397-10-40 PRIMARY | Huck International, Inc (USA) |
| 122896-10-40 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 11833-10-10 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M747-10-40 PRIMARY | The Boeing Company Div Defense (USA) |
| 122896-10-10 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| VCG0002-10-40 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| HP7747-10-40 | Heartland Precision Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| ST3M747-10-10 | 5/9 Secondary reference Fastener Innovation Technology, Inc. Dba F I T |
| 122896-10-40 | 3/2 Design control — primary reference U.S. Government activity |
| 122896-10-10 | 5/9 Secondary reference Sps Technologies Inc |
NSN 5306-01-476-9161 is a Bolt,close Tolerance, manufactured by Heartland Precision Fasteners Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-476-9161 has 17 manufacturer part numbers on file: HP7747-14-40 (Heartland Precision Fasteners Inc), S397-10-10 (Huck International, Inc), MB155-10-40 (Hi-Shear Corporation), ST3M747-10-40 (Houston Precision Fasteners I Lp), ST3M747-10-40 (Fastener Innovation Technology, Inc. Dba F I T) and 12 more.
Key specifications for HP7747-14-40: Head Height: 0.350 INCHES NOMINAL IN; Fastener Length: 3.261 INCHES MINIMUM AND 3.308 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS 5629 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.777 INCHES NOMINAL IN. 18 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.