The Bolt,eye, cataloged under National Stock Number 5306-00-558-8283, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Kato Engineering Inc.. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-558-8283 |
| Primary Part Number | 401-56280-24 |
| Item Name | Bolt,eye |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Kato Engineering Inc. |
| Status | ACTIVE |
| Eye Stock Diameter | 0.469 INCHES NOMINAL IN |
| Thread Length | 1.500 INCHES MINIMUM IN |
| Shank Length | 1.500 INCHES NOMINAL IN |
| Style Designator | ROUND, CLOSED W/SHOULDER |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Distance From Center of Eye to Shank End | 2.968 INCHES NOMINAL IN |
| Shoulder Diameter | 1.000 INCHES NOMINAL IN |
| Shoulder Thickness | 0.250 INCHES NOMINAL IN |
| Eye Inside Diameter | 1.125 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 13 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Eye Outside Width | 2.062 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 |
| Part Number | Manufacturer |
|---|---|
| 401-56280-24 PRIMARY | Kato Engineering Inc. (USA) |
| Reference | Meaning |
|---|---|
| 7755 | 5/9 Secondary reference Kato Engineering Inc. |
NSN 5306-00-558-8283 is a Bolt,eye, manufactured by Kato Engineering Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-558-8283 has 1 manufacturer part number on file: 401-56280-24 (Kato Engineering Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 5962-01-181-6753, 5962-01-395-9764, 4820-01-506-0408. Verify interchangeability with system specifications before substitution.
Key specifications for 401-56280-24: Eye Stock Diameter: 0.469 INCHES NOMINAL IN; Thread Length: 1.500 INCHES MINIMUM IN; Shank Length: 1.500 INCHES NOMINAL IN; Style Designator: ROUND, 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.