The Bolt,u, cataloged under National Stock Number 5306-01-084-4659, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Air Armament Center/ En. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-084-4659 |
| Primary Part Number | 748447-3 |
| Item Name | Bolt,u |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Air Armament Center/ En |
| Status | ACTIVE |
| Inside Distance Between Shanks | 2.031 INCHES MINIMUM AND 2.062 INCHES MAXIMUM IN |
| Thread Length | 1.750 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN |
| Distance From Inside Center of Bend to Bolt End | 3.750 INCHES MINIMUM AND 3.875 INCHES MAXIMUM IN |
| Style Designator | SQUARE BEND |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 748447-3 PRIMARY | Air Armament Center/ En (USA) |
| Reference | Meaning |
|---|---|
| 748447-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-084-4659 is a Bolt,u, manufactured by Air Armament Center/ En, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-084-4659 has 1 manufacturer part number on file: 748447-3 (Air Armament Center/ En).
Key specifications for 748447-3: Inside Distance Between Shanks: 2.031 INCHES MINIMUM AND 2.062 INCHES MAXIMUM IN; Thread Length: 1.750 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN; Distance From Inside Center of Bend to Bolt End: 3.750 INCHES MINIMUM AND 3.875 INCHES MAXIMUM IN; Style Designator: SQUARE BEND. 10 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.