The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-322-9074, 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 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-322-9074 |
| Primary Part Number | 3M143C4B4 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Plate Thickness | 0.040 INCHES NOMINAL IN |
| Nut Length | 1.296 INCHES NOMINAL IN |
| Thread Series | UNF |
| Plate Width | 0.516 INCHES NOMINAL IN |
| Material Document and Classification | AMS5525 FED SPEC SINGLE MATERIAL RESPONSE OR AMS5735 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Specification/standard Data | 76301-3-143C4B4 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.469 INCHES NOMINAL IN |
| Surface Treatment | SILVER OR PASSIVATE NUT |
| Nut Style | PLATE (FLOATING) |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 3M143C4B4 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5310-01-322-9074 is a Nut,self-Locking,plate, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-322-9074 has 1 manufacturer part number on file: 3M143C4B4 (The Boeing Company Div Defense).
Key specifications for 3M143C4B4: Plate Thickness: 0.040 INCHES NOMINAL IN; Nut Length: 1.296 INCHES NOMINAL IN; Thread Series: UNF; Plate Width: 0.516 INCHES NOMINAL IN. 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.