The Nut,self-Locking,round, cataloged under National Stock Number 5310-01-061-4901, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-061-4901 |
| Primary Part Number | 68A581611-2003 |
| Item Name | Nut,self-Locking,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Surface Treatment Document and Classification | PS13201,TYPE II,CLASS I,FSC-76301 MFR REF SINGLE TREATMENT RESPONSE NUT |
| Thread Series | UN |
| Material Document and Classification | QQ-A-225/6,COND T851 FED SPEC SINGLE MATERIAL RESPONSE NUT |
| Drive Point Width | 0.250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.562 INCHES IN |
| Nut Diameter | 2.000 INCHES NOMINAL IN |
| Drive Point Depth | 0.060 INCHES NOMINAL IN |
| Undercut Thickness | 0.270 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Thickness | 0.500 INCHES NOMINAL IN |
| Small End Diameter | 1.585 INCHES MINIMUM AND 1.615 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE NUT |
| Drive Point Quantity | 12 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | ALUMINUM ALLOY 2024 NUT |
| 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 |
|---|---|
| 68A581611-2003 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5310-01-061-4901 is a Nut,self-Locking,round, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-061-4901 has 1 manufacturer part number on file: 68A581611-2003 (The Boeing Company Div Defense).
Key specifications for 68A581611-2003: Surface Treatment Document and Classification: PS13201,TYPE II,CLASS I,FSC-76301 MFR REF SINGLE TREATMENT RESPONSE NUT; Thread Series: UN; Material Document and Classification: QQ-A-225/6,COND T851 FED SPEC SINGLE MATERIAL RESPONSE NUT; Drive Point Width: 0.250 INCHES NOMINAL IN. 18 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.