National Stock number : 5310-01-123-4613
Hexagon Castellated Plain Nut
| Available Quantity | 3,800 |
| Available Conditions | NE NS |
| Classification | Nuts and Washers - FSC 5310 |
| Schedule B | 7318160000 |
| Stock Check Date | 06/04/2026 |
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
Hexagon Castellated Plain Nut
Thread Class
3b
Thread Direction
RIGHT-Hand
Counterbore Diameter
0.265in. nut and 0.275in. nut
Nut Style
castellated, hexagon
Nut Height
0.408in. and 0.428in. ⁓7/16"
Nut Counterbore Depth
0.148in. nut and 0.168in. nut
Width Across Flats
0.428in. and 0.440in. ⁓29/64"
Thread Series
unjf
Thread Quantity Per Inch
28
Hardness Rating
94.0 rockwell b
Nominal Thread Size
0.250in. ⁓1/4"
Bearing Surface Type
chamfered
Bearing Surface Finish
125.0 microinches
Material
steel comp 4130
Material Document And Classification
MIL-S-6758 mil spec single material response
Surface Treatment
cadmium
Surface Treatment Document And Classification
SS8488, fscm 78286 mfr ref single treatment response
