The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-211-8429, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-211-8429 |
| Primary Part Number | BACB30NE10-18 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.312 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN |
| Fastener Length | 2.012 INCHES MINIMUM AND 2.042 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.877 INCHES MINIMUM AND 0.927 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | UNDERCUT HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 81205-BACB30NE MANUFACTURERS STANDARD |
| Grip Length | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN |
| Width Between Flats | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Grip Diameter | 0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| BACB30NE10-18 | Howmet Global Fastening Systems Inc (USA) |
| BACB30NE10-18 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30NE10-18 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| BACB30NE10-18 | Federal Manufacturing Corp (USA) |
| BACB30NE10-18 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30NE10-18 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| BACB30NE10-18 | 5/9 Secondary reference Voi-Shan/chatsworth Div of Vsi Corp Sub of Fairchild Industries Inc |
| BACB30NE10-18 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-211-8429 is a Bolt,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-211-8429 has 6 manufacturer part numbers on file: BACB30NE10-18 (Howmet Global Fastening Systems Inc), BACB30NE10-18 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BACB30NE10-18 (Howmet Global Fastening Systems Inc Div City of Industry Operations), BACB30NE10-18 (Federal Manufacturing Corp), BACB30NE10-18 (Sps Technologies, Llc Dba PB Fasteners) and 1 more.
Key specifications for BACB30NE10-18: Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.312 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN; Fastener Length: 2.012 INCHES MINIMUM AND 2.042 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.