The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-500-3069, 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 20 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-500-3069 |
| Primary Part Number | ST4M133-3-50 |
| 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 MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Nut Length | 1.560 INCHES MINIMUM AND 1.580 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE LOCKING INSERT |
| Thread Series | UNF |
| Plate Width | 1.570 INCHES MAXIMUM IN |
| Temp Rating | 300.0 FAHRENHEIT MAXIMUM DEGF |
| Distance From Base to Center of Aperture | 0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-377, COMP 2014 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-367, COMP 2219 FED SPEC 2ND MATERIAL RESPONSE LOCKING INSERT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH METALLIC INSERT |
| Nut Height | 0.869 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.123 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Surface Treatment | CHROMATE LOCKING INSERT |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 304 SHELL |
| Material | ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2219 LOCKING INSERT |
| Hole Type and Quantity | 3 DRILLED |
| 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 |
|---|---|
| ST4M133-3-50 PRIMARY | The Boeing Company Div Defense (USA) |
| ST4M133-3-50 | Monadnock Company, the Dba Lisi Aerospace (USA) |
| Reference | Meaning |
|---|---|
| WS1333-50D | 5/9 Secondary reference Atlas Corp Western Sky Industries Div |
| ST4M133-3-50 | 5/9 Secondary reference Atlas Corp Western Sky Industries Div |
| ST4M133-3-50 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-500-3069 is a Nut,self-Locking,plate, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-500-3069 has 2 manufacturer part numbers on file: ST4M133-3-50 (The Boeing Company Div Defense), ST4M133-3-50 (Monadnock Company, the Dba Lisi Aerospace).
Key specifications for ST4M133-3-50: Plate Thickness: 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Nut Length: 1.560 INCHES MINIMUM AND 1.580 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE LOCKING INSERT; Thread Series: UNF. 20 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.