The Bolt,u, cataloged under National Stock Number 5306-01-059-7427, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-059-7427 |
| Primary Part Number | 639AS1369 |
| Item Name | Bolt,u |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Inside Distance Between Shanks | 1.396 INCHES MINIMUM AND 1.436 INCHES MAXIMUM IN |
| Thread Length | 1.000 INCHES MINIMUM IN |
| Distance From Inside Center of Bend to Bolt End | 2.338 INCHES MINIMUM AND 2.478 INCHES MAXIMUM IN |
| Style Designator | ROUND BEND |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 639AS1369 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5306-01-059-7427 is a Bolt,u, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-059-7427 has 1 manufacturer part number on file: 639AS1369 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 639AS1369: Inside Distance Between Shanks: 1.396 INCHES MINIMUM AND 1.436 INCHES MAXIMUM IN; Thread Length: 1.000 INCHES MINIMUM IN; Distance From Inside Center of Bend to Bolt End: 2.338 INCHES MINIMUM AND 2.478 INCHES MAXIMUM IN; Style Designator: ROUND BEND. 11 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.