The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-067-3397, 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 14 specifications, cited from the U.S. Government catalog. The record lists 21 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-067-3397 |
| Primary Part Number | BM17019-3-18 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Fastener Length | 1.440 INCHES MINIMUM AND 1.487 INCHES MAXIMUM IN |
| Thread Length | 0.305 INCHES MINIMUM AND 0.372 INCHES MAXIMUM IN |
| Material Document and Classification | 23-112 TY B FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| ST3M453-3-18 | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| ST3M453-3-18 | Huck International, Inc (USA) |
| ST3M453-3-18 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M453-3-18 | Howmet Global Fastening Systems Inc (USA) |
| ST3M453-3-18 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| AIC753-3-18 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M453-3-18 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| GS1016-3-18 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| VAL23029-3-18 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MB61-3-18 | Hi-Shear Corporation (USA) |
| ST3M453-3-18 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M453-3-18 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| MB61-3-18 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M453-3-18 | Heartland Precision Fasteners Inc (USA) |
| ST3M453-3-18 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M453-3-18 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| BM17019-3-18 PRIMARY | Huck International, Inc (USA) |
| S353-3-18 | Huck International, Inc (USA) |
| ST3M453-3-18 | Hi-Shear Corporation (USA) |
| 11825-3-18 | Reid Products Inc. Dba Reid Products Inc (USA) |
| Reference | Meaning |
|---|---|
| ST3M453-3-18 | 5/2 Secondary reference U.S. Government activity |
| ST3M453-3-18 | 5/9 Secondary reference Kenaloy Products Inc Sub Masco Corp |
| ST3M453-3-18 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| US3204-3-18 | 5/2 Secondary reference U.S. Government activity |
| 109453-3-18 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| BM17019-3-18 | 3/9 Design control — primary reference U.S. Government activity |
| 109453-3-18 | 5/2 Secondary reference U.S. Government activity |
| S353-3-18 | 5/9 Secondary reference U.S. Government activity |
| ST3M453-3-18 | 5/9 Secondary reference Sps Technologies Inc |
NSN 5306-01-067-3397 is a Bolt,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-067-3397 has 21 manufacturer part numbers on file: ST3M453-3-18 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), ST3M453-3-18 (Huck International, Inc), ST3M453-3-18 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), ST3M453-3-18 (Howmet Global Fastening Systems Inc), ST3M453-3-18 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 16 more.
Key specifications for BM17019-3-18: Head Height: 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Fastener Length: 1.440 INCHES MINIMUM AND 1.487 INCHES MAXIMUM IN; Thread Length: 0.305 INCHES MINIMUM AND 0.372 INCHES MAXIMUM IN; Material Document and Classification: 23-112 TY B FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 14 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.