Extended Self-Locking Washer Nut - MS21042L4
Genuine OEM Part
Experience unparalleled durability and reliability with the MS21042L4 - Extended Self-Locking Washer Nut. Meticulously crafted to meet aviation standards, this washer nut ensures a steadfast grip, reducing the need for constant retightening and maintenance checks. The design combines the strength of a washer with the lock-tight properties of a nut, making it an indispensable asset for aviation professionals and enthusiasts alike. From the robust build to the flawless finish, every facet of this component epitomizes quality and performance. Ideal for aircraft applications demanding heightened security - invest in the MS21042L4.
Description: Extended Self-Locking Washer Nut
Part Number: MS21042L4
Alternate Part Numbers: 10121716, 333-1422-100, 5310008071475, 5310PL0141536, 5310PL1389146, 875442-00, 959.30.02.023, 984018, FN12M-048, MBEU64041 ITEM 31, P26042, PN-A-25-27-00-050-941A-A ITEM002, RM52LH3324-048, T98S428, Z00.N5415371302
Product Overview
A nut having 6 flat sides and an integral washer that extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.
Item Specification
| Thread Class | 3B | |
| Thread Direction | Right-hand | |
| Locking Feature | Prevailing torque all metal design | |
| Washer Outside Diameter | 0.420 inches maximum | |
| Lubrication | Dry film lubricant | |
| Overall Height | 0.204 inches minimum and 0.219 inches maximum | |
| Nut Style | Hexagon | |
| Washer Thickness | 0.019 inches minimum | |
| Width Across Flats | 0.304 inches minimum and 0.316 inches maximum | |
| Temp Rating | 450.0 deg fahrenheit nominal | |
| Thread Series | UNJF | |
| Thread Quantity per Inch | 28 | |
| Hardness Rating | 49.0 rockwell C maximum | |
| Nominal Thread Size | 0.250 inches | |
| Criticality Code Justification | FEAT | |
| Special Features | Weapons system essential | |
| Material | Steel overall | |
| Surface Treatment | Cadmium overall and chromate overall | |
| Surface Treatment Document and Classification | QQ-P-416, ty 2, cl 3 fed spec single treatment response overall |
| Additional info | |
|---|---|
| Colors | Chrome |
| Dimensions | |
|---|---|
| Dimensions (W x H x D) | 3.90" x 4.25" x 0.70" inches |
| Length | 4.25" inches |
| Weight | 0.35 lb |
| Specifications | |
|---|---|
| 8130-3 Eligible | Yes |
| ATA Chapter | 51 ATA Standard Practices and Structures |
| Available Conditions | NE / NS |
| Cage Code | 0PYA5 |
| Country of origin | United States of America |
| ECCN / USML | 9A991.d |
| FAA Approval Code | PC |
| Hazmat Code | Not Applicable |
| Hazmat(Y/N) | N |
| Material | Steel Overall |
| NSN | 5310-00-807-1475 |
| Schedule B | 7318.16.0000 |
| Thread | 3B |
| Total Shelf Life (days) | Not Applicable |
| Type | Nut |
| Units of Measure (UoM) | Each |
| Brand | Continental Aerospace Technologies |
| Color | Chrome |
| Condition status | Depreciated |