The Bolt,eye, cataloged under National Stock Number 5306-01-280-6688, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-280-6688 |
| Primary Part Number | 5497060-1 |
| Item Name | Bolt,eye |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-P-24441/1 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-P-24441/2 MIL SPEC 2ND TREATMENT RESPONSE AND MIL-P-24441/3 MIL SPEC 2ND TREATMENT RESPONSE FIRST SHOULDER |
| Thread Length | 3.000 INCHES MINIMUM IN |
| Shank Length | 4.560 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Distance From Center of Eye to Shank End | 9.025 INCHES NOMINAL IN |
| Shoulder Diameter | 0.812 INCHES NOMINAL IN |
| Shoulder Thickness | 3.940 INCHES NOMINAL IN |
| Color | GREEN AND GRAY/GREY AND WHITE FIRST SHOULDER |
| Surface Treatment | PRIMER AND PAINT FIRST SHOULDER |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Eye Inside Diameter | 0.315 INCHES MINIMUM AND 0.321 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Eye Stock Thickness | 0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNF |
| Eye Outside Width | 0.812 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 |
NSN 5306-01-280-6688 is a Bolt,eye, manufactured by Naval Sea Systems Command, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-280-6688 has 2 manufacturer part numbers on file: 5497060-1 (Naval Sea Systems Command), 5497060-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 5497060-1: Surface Treatment Document and Classification: MIL-P-24441/1 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-P-24441/2 MIL SPEC 2ND TREATMENT RESPONSE AND MIL-P-24441/3 MIL SPEC 2ND TREATMENT RESPONSE FIRST SHOULDER; Thread Length: 3.000 INCHES MINIMUM IN; Shank Length: 4.560 INCHES NOMINAL IN; Material Document and Classification: MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 19 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.