National Stock number : 5310-00-807-1475
Self-locking Extended Washer Nut
| Available Quantity | 237,201 |
| Available Conditions | NE NS SV AR OH |
| Classification | Nuts and Washers - FSC 5310 |
| Schedule B | 7318160000 |
| Stock Check Date | 12/24/2025 |
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
0.420in.
Lubrication
dry film lubricant
Overall Height
0.204in. and 0.219in.
Nut Style
hexagon
Washer Thickness
0.019in.
Width Across Flats
0.304in. and 0.316in. ⁓21/64"
Temp Rating
450.0 deg fahrenheit
Thread Series
unjf
Thread Quantity Per Inch
28
Hardness Rating
49.0 rockwell c
Nominal Thread Size
0.250in. ⁓1/4"
Criticality Code Justification
feat
Special Features
weapons system essential
Material
steel
Surface Treatment
cadmium and chromate
Surface Treatment Document And Classification
QQ-P-416, ty 2, cl 3 fed spec single treatment response
