SELF-LOCKING NUT - MS21042-6
Military Standard Part
Description: Extended Washer, Self-locking Nut, Hexagon
Part Number: MS21042-6
Alternate Part Number: NAS1291X6
Product Overview
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.
MS21042-6 Features and Specification
| PARAMETER | CHARACTERISTIC | |
| Washer Thickness | : | 0.03 inches |
| Width Across Flats | : | Between 0.43 inches and 0.44 inches |
| Washer Outside diameter | : | 0.62 inches |
| Thread Series | : | Unjf (fine thread with external controlled root radius) |
| Thread size | : | 0.375 inches |
| Thready Qty Per Inch (tpi) | : | 24 |
| Thread Direction | : | Right-hand |
| Thread Class | : | 3B |
| Overall Height | : | Between 0.267 inches and 0.282 inches |
| Surface Treatment | : | Cadmium and chromate |
| Surface Treatment Specification | : | Class 3 federal specification single treatment response type 2 qq-p-416 |
| Temperature Rating | : | 450 degrees Fahrenheit |
| Nut Style | : | Hexagon |
| Material | : | Steel |
| Lubrication | : | Soluble Lubricant |
| Locking Feature | : | Prevailing torque all metal design |
This part is used on the following aircraft:
- • Bombardier Global Express
- • Bombardier Learjet 40
- • Bombardier Learjet 45
- • Bombardier Learjet 55
- • Bombardier Learjet 60 - all variants
- • Embraer Legacy 600-650
- • Embraer Phenom 300
- • Piaggio Avanti II
- • Piaggio Avanti P180
- • Textron Aviation Beechcraft King Air 100 - all variants
- • Textron Aviation Beechcraft King Air 200 - all variants
- • Textron Aviation Beechcraft King Air 300 - all variants
- • Textron Aviation Beechcraft King Air 90 - all variants
- • Textron Aviation Beechcraft Premier
- • Textron Aviation Cessna 500 Citation I-ISP
- • Textron Aviation Cessna 525 Citation Citationjet
- • Textron Aviation Cessna 550 Citation I-II-Bravo
- • Textron Aviation Cessna 560 Citation V-Ultra-Encore-Excel-XLS
- • Textron Aviation Cessna 650 Citation III-IV-VI-VII
- • Textron Aviation Cessna 680 Citation Sovereign
- • Textron Aviation Cessna 750 Citation X
- • Textron Aviation Hawker 800XP-850XP
- • Textron Aviation Hawker 900XP
**Military Fasteners - MS21042-6 [ Click Here ]
| Dimensions | |
|---|---|
| Dimensions (W x H x D) | 0.6" x 0.275" x 0.275" Inches |
| Length | 0.6" Inch |
| Weight | 0.01 lbs |
| Specifications | |
|---|---|
| ATA Chapter | ATA 51 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 Overall |
| NSN | 5310-00-810-1786 |
| Schedule B | 7318.16.0000 |
| Total Shelf Life (days) | Not Applicable |
| Type | Nuts |
| Units of Measure (UoM) | Each |
| Condition status | Depreciated |