The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-062-6847, 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 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-062-6847 |
| Primary Part Number | BACB30NE3-50 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.110 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Fastener Length | 3.455 INCHES MINIMUM AND 3.485 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.320 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | UNDERCUT HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 3.115 INCHES MINIMUM AND 3.135 INCHES MAXIMUM IN |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 8740 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 |
|---|---|
| BACB30NE3-50 | Huck International, Inc (USA) |
| BACB30NE3-50 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30NE3-50 | Howmet Global Fastening Systems Inc (USA) |
| BACB30NE3-50 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30NE3-50 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30NE3-50 | Federal Manufacturing Corp (USA) |
| BACB30NE3-50 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| NAS6603-50 | 5/9 Secondary reference U.S. Government activity |
| BACB30NE3-50 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-062-6847 is a Bolt,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-062-6847 has 7 manufacturer part numbers on file: BACB30NE3-50 (Huck International, Inc), BACB30NE3-50 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BACB30NE3-50 (Howmet Global Fastening Systems Inc), BACB30NE3-50 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30NE3-50 (Sps Technologies, Llc Dba PB Fasteners) and 2 more.
Key specifications for BACB30NE3-50: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.110 INCHES MINIMUM AND 0.125 INCHES MAXIMUM 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.