A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.
MS21042-4 Part Specifications:
| Thread Direction | : | Right-hand | |
| Locking Feature | : | Prevailing Torque All Metal Design | |
| Washer Outside Diameter | : | 0.420" Inches Maximum | |
| Overall Height | : | 0.204" Inches Minimum And 0.219" Inches Maximum | |
| Nut Style | : | Hexagon | |
| Washer Thickness | : | 0.019" Inches Minimum | |
| Iii End Item Identification | : | 4910-01-539-6129 | |
| Width Across Flats | : | 0.304" Inches Minimum And 0.316" Inches Maximum | |
| Thread Series | : | Unjf | |
| Thread Quantity Per Inch | : | 28 | |
| Nominal Thread Size | : | 0.250" Inches | |
| Iii Part Name Assigned By Controlling Agency | : | Nut, Self Locking | |
| Material | : | Steel Corrosion Resisting Overall |
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| Dimensions | |
|---|---|
| Dimensions (W x H x D) | 0.412" x 0.412" x 0.214" Inch |
| Length | 0.412" Inch |
| Weight | 0.003 lb |
| Specifications | |
|---|---|
| ATA Chapter | 51 ATA Standard Practices and Structures |
| Available Conditions | NE/NS |
| Cage Code | 96906 |
| Country of origin | United States of America |
| ECCN / USML | Ear99 |
| Hazmat Code | Not applicable |
| Hazmat(Y/N) | N |
| Material | Steel |
| NSN | 5310-01-628-4949 |
| Schedule B | 7318.16.0085 |
| Total Shelf Life (days) | Not applicable |
| Type | Nut and Washer |
| Units of Measure (UoM) | Each |
| Brand | Military Standards |
| Condition status | Depreciated |
