National Stock number : 5310-01-365-7269
Concave Washer
| Available Quantity | 858 |
| Available Conditions | NE |
| Classification | Nuts and Washers - FSC 5310 |
| Schedule B | 7318220000 |
| Stock Check Date | 10/22/2025 |
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
Concave Washer
Hole Diameter
0.345in. and 0.355in. ⁓23/64"
Radius
0.290in. and 0.310in.
Outside Diameter
0.505in. and 0.515in.
Material Thickness
0.090in. and 0.110in.
Hardness Rating
40.0 rockwell c and 46.0 rockwell c
Surface Finish
32.0 microinches top
Special Features
radius offset 0.288 in. min 0.298 in. max
Material
steel comp 8740 or steel comp 4130
Material Document And Classification
MIL-S-6049 mil spec 1st material response or MIL-S-6758 mil spec 2nd material response
Surface Treatment
cadmium and chromate
Surface Treatment Document And Classification
QQ-P-416, type 2, cl 1 fed spec single treatment response
Style Designator
concave
