The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-520-6442, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-520-6442 |
| Primary Part Number | 265-329022 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Head Height | 0.188 INCHES NOMINAL IN |
| Fastener Length | 2.719 INCHES NOMINAL IN |
| Thread Length | 0.375 INCHES MINIMUM IN |
| Shank Unthreaded Hole Diameter | 0.076 INCHES NOMINAL FIRST HOLE IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | ROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.250 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN |
| Width Between Flats | 0.502 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN |
| Grip Diameter | 0.3404 INCHES MINIMUM AND 0.3409 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.563 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 0.625 INCHES NOMINAL IN |
| 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 |
|---|---|
| 265-329022 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| 265-329022 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
NSN 5306-00-520-6442 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-520-6442 has 2 manufacturer part numbers on file: 265-329022 (The Boeing Company Div Legacy Am&m), 265-329022 (Valley-Todeco, Inc. Dba Arconic Fastening Systems).
Key specifications for 265-329022: Head Height: 0.188 INCHES NOMINAL IN; Fastener Length: 2.719 INCHES NOMINAL IN; Thread Length: 0.375 INCHES MINIMUM IN; Shank Unthreaded Hole Diameter: 0.076 INCHES NOMINAL FIRST HOLE 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.