The Bolt,eye, cataloged under National Stock Number 5306-01-138-3277, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-138-3277 |
| Item Name | Bolt,eye |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Eye Stock Diameter | 1.750 INCHES MINIMUM AND 1.750 INCHES MINIMUM AND 1.880 INCHES MAXIMUM1.880 INCHES MAXIMUM IN |
| Thread Length | 3.380 INCHES MINIMUM3.380 INCHES MINIMUM IN |
| Shank Length | 4.000 INCHES MINIMUM AND 4.000 INCHES MINIMUM AND 4.120 INCHES MAXIMUM4.120 INCHES MAXIMUM IN |
| Style Designator | ROUND, CLOSED W/SHOULDERROUND, CLOSED W/SHOULDER |
| Nominal Thread Diameter | 2.000 INCHES2.000 INCHES IN |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Distance From Center of Eye to Shank End | 8.250 INCHES MINIMUM AND 8.250 INCHES MINIMUM AND 8.620 INCHES MAXIMUM8.620 INCHES MAXIMUM IN |
| Shoulder Diameter | 2.880 INCHES MINIMUM AND 2.880 INCHES MINIMUM AND 3.000 INCHES MAXIMUM3.000 INCHES MAXIMUM IN |
| Shoulder Thickness | 0.620 INCHES MINIMUM AND 0.620 INCHES MINIMUM AND 0.750 INCHES MAXIMUM0.750 INCHES MAXIMUM IN |
| Eye Inside Diameter | 3.060 INCHES MINIMUM AND 3.060 INCHES MINIMUM AND 3.440 INCHES MAXIMUM3.440 INCHES MAXIMUM IN |
| Thread Class | 2A2A |
| Thread Quantity Per Inch | 4-1/24-1/2 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC) |
| Eye Outside Width | 6.880 INCHES NOMINAL6.880 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 |
|---|---|
| 520-4674716 ITEM 4 | 5/1 Secondary reference U.S. Government activity |
| MS51937-15 | 2/2 Government specification standardization U.S. Government activity |
NSN 5306-01-138-3277 is a Bolt,eye, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-138-3277: Eye Stock Diameter: 1.750 INCHES MINIMUM AND 1.750 INCHES MINIMUM AND 1.880 INCHES MAXIMUM1.880 INCHES MAXIMUM IN; Thread Length: 3.380 INCHES MINIMUM3.380 INCHES MINIMUM IN; Shank Length: 4.000 INCHES MINIMUM AND 4.000 INCHES MINIMUM AND 4.120 INCHES MAXIMUM4.120 INCHES MAXIMUM IN; Style Designator: ROUND, CLOSED W/SHOULDERROUND, CLOSED W/SHOULDER. 15 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.