The Bolt,eye, cataloged under National Stock Number 5306-01-646-3334, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-646-3334 |
| Item Name | Bolt,eye |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Thread Length | 0.531 INCHES NOMINAL IN |
| Shank Length | 3.454 INCHES NOMINAL IN |
| Style Designator | ROUND, CLOSED W/SHOULDER |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Distance From Center of Eye to Shank End | 4.250 INCHES NOMINAL IN |
| Shoulder Diameter | 0.625 INCHES NOMINAL IN |
| Shoulder Thickness | 0.094 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 1250000 POUNDS PER SQUARE INCH LBS |
| Eye Inside Diameter | 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Eye Stock Thickness | 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL |
| Thread Series Designator | UNF |
| Eye Outside Width | 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 |
| Reference | Meaning |
|---|---|
| AN44-35A | 5/9 Secondary reference U.S. Government activity |
| AN44-35A | 3/2 Design control — primary reference U.S. Government activity |
| AM44-35A | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-646-3334 is a Bolt,eye, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-646-3334: Thread Length: 0.531 INCHES NOMINAL IN; Shank Length: 3.454 INCHES NOMINAL IN; Style Designator: ROUND, CLOSED W/SHOULDER; Overall Length: 3.703 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN. 17 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.