The Bolt,eye, cataloged under National Stock Number 5306-01-038-2555, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-038-2555 |
| Item Name | Bolt,eye |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Thread Length | 0.500 INCHES MINIMUM AND 0.579 INCHES MAXIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.066 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN |
| Shank Length | 0.828 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Style Designator | ROUND, CLOSED W/SHOULDER |
| Material Document and Classification | MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Distance From Center of Eye to Shank End | 1.366 INCHES NOMINAL IN |
| Shoulder Diameter | 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN |
| Shoulder Thickness | 0.078 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 125000 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 431 OVERALL |
| Thread Series Designator | UNF |
| Eye Outside Width | 0.609 INCHES MINIMUM AND 0.641 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 |
| Reference | Meaning |
|---|---|
| AN44-C6 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| AN44-C6 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-038-2555 is a Bolt,eye, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-038-2555: Thread Length: 0.500 INCHES MINIMUM AND 0.579 INCHES MAXIMUM IN; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL; Shank Unthreaded Hole Diameter: 0.066 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN; Shank Length: 0.828 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN. 20 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.