National Stock number : 5310-00-556-6821
Self-locking Extended Washer Nut
| Available Quantity | 31,549 |
| Available Conditions | NS NE SV |
| Classification | Nuts and Washers - FSC 5310 |
| Schedule B | 7318160000 |
| Stock Check Date | 06/09/2026 |
Part-Number.info Quality System
- ISO 9001:2015 + AS9120B Certifed
- Audited supply chain
- Counterfeit Parts Prevention
- 100% Product Inspections
- 7 Year Record Retention
- HAZMAT Certified
- ITAR and DDTC Registered
Product Properties
Description
Self-locking Extended Washer Nut
Thread Class
3b
Thread Direction
RIGHT-Hand
Locking Feature
prevailing torque all metal design
Washer Outside Diameter
0.380in.
Counterbore Diameter
0.211in. nut and 0.221in. nut
Lubrication
dry film lubricant
Overall Height
0.223in. and 0.243in.
Nut Style
double hexagon
Washer Thickness
0.072in. and 0.087in.
Nut Counterbore Depth
0.072in. nut and 0.087in. nut
Width Across Flats
0.213in. and 0.221in. ⁓15/64"
Temp Rating
450.0 deg fahrenheit
Thread Series
unjf
Thread Quantity Per Inch
32
Hardness Rating
35.0 rockwell c and 40.0 rockwell c
Nominal Thread Size
0.190in. ⁓13/64"
Material
steel comp 8740 washer
Material Document And Classification
AMS6322 assn std single material response washer or MIL-S-6049 comp 8740 mil spec single material response washer
Surface Treatment
cadmium nut
Surface Treatment Document And Classification
QQ-P-416 TYPE2, CLASS3 fed spec single treatment response washer
