The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-434-7559, 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 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-434-7559 |
| Primary Part Number | BACB30NE10-40Z |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.312 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN |
| Fastener Length | 3.4204 INCHES MINIMUM AND 3.4504 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416, TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.902 INCHES NOMINAL 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 | 0.6250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.4900 INCHES MINIMUM AND 2.5100 INCHES MAXIMUM IN |
| Width Between Flats | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Grip Diameter | 0.6698 INCHES MINIMUM AND 0.6708 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 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 |
|---|---|
| BACB30NE10-40Z | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30NE10-40Z | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30NE10-40Z | Howmet Global Fastening Systems Inc (USA) |
| BACB30NE10-40Z | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30NE10-40Z | Federal Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| BACB30NE10-40Z | 5/2 Secondary reference U.S. Government activity |
| BACB30NE10-40Z | 5/9 Secondary reference U.S. Government activity |
| BACB30NE10-40Z | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-434-7559 is a Bolt,close Tolerance, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-434-7559 has 5 manufacturer part numbers on file: BACB30NE10-40Z (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30NE10-40Z (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BACB30NE10-40Z (Howmet Global Fastening Systems Inc), BACB30NE10-40Z (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30NE10-40Z (Federal Manufacturing Corp).
Key specifications for BACB30NE10-40Z: Head Height: 0.312 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN; Fastener Length: 3.4204 INCHES MINIMUM AND 3.4504 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416, TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.902 INCHES NOMINAL IN. 16 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.