The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-071-6489, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies Llc Dba PB Fasteners Div PB Fasteners. Government technical data includes 20 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-071-6489 |
| Primary Part Number | BACB30NE4P5 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| 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 | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 0.722 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.400 INCHES MINIMUM AND 0.450 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 | 0.250 INCHES IN |
| Head Style | UNDERCUT HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 81205-BACB30NE MANUFACTURERS STANDARD |
| Grip Length | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| 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 |
|---|---|
| BACB30NE4P5 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30NE4P5 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30NE4P5 | Howmet Global Fastening Systems Inc (USA) |
| BACB30NE4P5 | Federal Manufacturing Corp (USA) |
| BACB30NE4P5 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30NE4P5 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| BACB30NE4P5 | 5/9 Secondary reference Deutsch Fastener Corp |
| BACB30NE4P5 | 5/9 Secondary reference Tab Engineering |
| BACB30NE4P5 | 3/2 Design control — primary reference U.S. Government activity |
| BACB30NE4P5 | 5/2 Secondary reference U.S. Government activity |
| BACB30NE4P5 | 5/9 Secondary reference U.S. Government activity |
| BACB30NE4P5 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-071-6489 is a Bolt,close Tolerance, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-071-6489 has 6 manufacturer part numbers on file: BACB30NE4P5 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30NE4P5 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BACB30NE4P5 (Howmet Global Fastening Systems Inc), BACB30NE4P5 (Federal Manufacturing Corp), BACB30NE4P5 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 1 more.
Key specifications for BACB30NE4P5: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.125 INCHES MINIMUM AND 0.140 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.