The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-210-2915, 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 20 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-210-2915 |
| Primary Part Number | BACB30NF16-90 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems 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 | 0.500 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN |
| Fastener Length | 6.501 INCHES MINIMUM AND 6.531 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.866 INCHES MINIMUM AND 0.916 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Head Style | UNDERCUT HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 5.615 INCHES MINIMUM AND 5.635 INCHES MAXIMUM IN |
| Width Between Flats | 1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN |
| Grip Diameter | 0.9980 INCHES MINIMUM AND 0.9990 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 140000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP E4340 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 |
|---|---|
| BACB30NF16-90 | Howmet Global Fastening Systems Inc (USA) |
| BACB30NF16-90 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30NF16-90 | Federal Manufacturing Corp (USA) |
| BACB30NF16-90 | Huck International, Inc (USA) |
| BACB30NF16-90 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| BACB30NF16-90 | 5/9 Secondary reference U.S. Government activity |
| BACB30NF16-90 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| BACB30NF16-90 | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| BACB30NF16-90 | 5/2 Secondary reference U.S. Government activity |
| BACB30NF16-90 | 5/2 Secondary reference U.S. Government activity |
| BACB30NF16-90 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-210-2915 is a Bolt,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-210-2915 has 5 manufacturer part numbers on file: BACB30NF16-90 (Howmet Global Fastening Systems Inc), BACB30NF16-90 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30NF16-90 (Federal Manufacturing Corp), BACB30NF16-90 (Huck International, Inc), BACB30NF16-90 (Valley-Todeco, Inc. Dba Arconic Fastening Systems).
Key specifications for BACB30NF16-90: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.500 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN. 20 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.