The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-357-1881, 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 16 specifications, cited from the U.S. Government catalog. The record lists 15 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-357-1881 |
| Primary Part Number | BM17019-10D33 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| Fastener Length | 2.823 INCHES MINIMUM AND 2.870 INCHES MAXIMUM IN |
| Thread Length | 0.751 INCHES MINIMUM AND 0.818 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 08524-B-17019 MANUFACTURERS STANDARD |
| Grip Length | 2.052 INCHES MINIMUM AND 2.072 INCHES MAXIMUM IN |
| Width Between Flats | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Grip Diameter | 0.6235 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.694 INCHES MINIMUM AND 2.751 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 |
|---|---|
| MB61-10D33 | Hi-Shear Corporation (USA) |
| ST3M453-10D33 | Eg and G Sea-Link Systems (USA) |
| VAL23029-10D33 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MB61-10D33 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| GS1016-10D33 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| ST3M453-10D33 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| BM17019-10D33 PRIMARY | Huck International, Inc (USA) |
| 11825-10D33 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M453-10D33 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| ST3M453-10D33 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M453-10D33 PRIMARY | The Boeing Company Div Defense (USA) |
| 109453-10D33 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M453-10D33 | Plastic Sealing Corp (USA) |
| ST3M453-10D33 | Huck International, Inc (USA) |
| ST3M453-10D33 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| US3204-10D33 | 5/2 Secondary reference U.S. Government activity |
| 109453-10D33 | 5/9 Secondary reference Sps Technologies Inc |
| ST3M453-10D33 | 5/9 Secondary reference M.s. Aerospace Inc. Dba Ms Aerospace Inc |
| BM17019-10D33 | 5/9 Secondary reference U.S. Government activity |
| ST3M453-10D33 | 5/9 Secondary reference Kenaloy Products Inc Sub Masco Corp |
| ST3M453-10D33 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-00-357-1881 is a Bolt,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-357-1881 has 15 manufacturer part numbers on file: MB61-10D33 (Hi-Shear Corporation), ST3M453-10D33 (Eg and G Sea-Link Systems), VAL23029-10D33 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), MB61-10D33 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), GS1016-10D33 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace) and 10 more.
Key specifications for BM17019-10D33: Head Height: 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN; Fastener Length: 2.823 INCHES MINIMUM AND 2.870 INCHES MAXIMUM IN; Thread Length: 0.751 INCHES MINIMUM AND 0.818 INCHES MAXIMUM IN; Shank Unthreaded Hole Diameter: 0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE 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.