The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-004-9527, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-004-9527 |
| Primary Part Number | BM17019-8D29 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Fastener Length | 2.445 INCHES MINIMUM AND 2.492 INCHES MAXIMUM IN |
| Thread Length | 0.623 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 08524-B-17019 MANUFACTURERS STANDARD |
| Grip Length | 1.802 INCHES MINIMUM AND 1.822 INCHES MAXIMUM IN |
| Width Between Flats | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Grip Diameter | 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.317 INCHES MINIMUM AND 2.374 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 |
|---|---|
| HP5453-8D29 | Heartland Precision Fasteners Inc (USA) |
| S11-1060-8D29 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| BM17019-8D29 PRIMARY | Huck International, Inc (USA) |
| AIC753-8D29 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| F1T047-8D29 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| VS3204-8D29 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| VAL23029-8D29 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MB61-8D29 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| GS1016-8D29 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 11825-8D29 | Reid Products Inc. Dba Reid Products Inc (USA) |
| MB61-8D29 PRIMARY | Hi-Shear Corporation (USA) |
| PBF1253-8D29 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| ST3M453-8D29 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 109453-8D29 | 3/2 Design control — primary reference U.S. Government activity |
| 109453-8D29 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| BM17019-8D29 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-004-9527 is a Bolt,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-004-9527 has 12 manufacturer part numbers on file: HP5453-8D29 (Heartland Precision Fasteners Inc), S11-1060-8D29 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), BM17019-8D29 (Huck International, Inc), AIC753-8D29 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), F1T047-8D29 (Fastener Innovation Technology, Inc. Dba F I T) and 7 more.
Key specifications for BM17019-8D29: Head Height: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN; Fastener Length: 2.445 INCHES MINIMUM AND 2.492 INCHES MAXIMUM IN; Thread Length: 0.623 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN; Shank Unthreaded Hole Diameter: 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE 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.