The Bolt,eye, cataloged under National Stock Number 5306-00-808-2131, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-808-2131 |
| Item Name | Bolt,eye |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Thread Length | 2.500 INCHES MINIMUM IN |
| Shank Length | 9.030 INCHES NOMINAL IN |
| Style Designator | ROUND, CLOSED W/SHOULDER |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.750 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Distance From Center of Eye to Shank End | 12.165 INCHES NOMINAL IN |
| Shoulder Diameter | 3.5000 INCHES NOMINAL IN |
| Shoulder Thickness | 0.500 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Eye Inside Diameter | 1.500 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Eye Stock Thickness | 1.115 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 1 3/4-8 |
| Material | STEEL COMP E4340 OVERALL |
| Thread Series Designator | UN |
| Eye Outside Width | 3.500 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 |
|---|---|
| 407242-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-808-2131 is a Bolt,eye, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-808-2131: Thread Length: 2.500 INCHES MINIMUM IN; Shank Length: 9.030 INCHES NOMINAL IN; Style Designator: ROUND, CLOSED W/SHOULDER; Material Document and Classification: MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.