The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-642-1920, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Genuine Aircraft Hardware Co. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-642-1920 |
| Primary Part Number | NAS8702U5 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Genuine Aircraft Hardware Co |
| Status | ACTIVE |
| Fastener Length | 0.7505 INCHES NOMINAL IN |
| Thread Length | 0.438 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.3125 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.3125 INCHES NOMINAL IN |
| Grip Diameter | 0.3125 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.429 INCHES MINIMUM AND 0.477 INCHES MAXIMUM 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 |
|---|---|
| NAS8702U5 PRIMARY | Genuine Aircraft Hardware Co (USA) |
| Reference | Meaning |
|---|---|
| NAS8702U5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-642-1920 is a Bolt,close Tolerance, manufactured by Genuine Aircraft Hardware Co, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-642-1920 has 1 manufacturer part number on file: NAS8702U5 (Genuine Aircraft Hardware Co).
Key specifications for NAS8702U5: Fastener Length: 0.7505 INCHES NOMINAL IN; Thread Length: 0.438 INCHES NOMINAL IN; Nominal Thread Diameter: 0.3125 INCHES IN; Head Style: FLAT COUNTERSUNK. 15 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.