NAS1169C416 - Dimpled Aerospace Washer
National Aerospace Standard Part
Description: Dimpled Washer, Size 1/4"
Part Number: NAS1169C416
Product Overview
A washer or cone or disk shape with a centrally located hole, designed to accommodate a flat or oval head screw and provide an additional bearing area on the material being fastened. It may or may not have a flush flange feature.
The NAS1169C416 is a dimpled washer made from high-quality stainless steel, designed to meet stringent aerospace standards. This washer features a dimpled surface that helps to evenly distribute the load of a fastener across its surface area, reducing the risk of damage to the material being fastened. The dimple design also provides a locking action that prevents loosening due to vibrations, making it ideal for critical applications in aircraft assemblies.
Technical Specifications:
- Part Number: NAS1169C416
- Material: Stainless steel
- Dimensions: Specific size to fit standard aerospace bolts and fasteners
- Application: Used in high-stress areas of aircraft, providing secure fastening and resistance to vibration
Item Specification
| Detail | Characteristic | |
| Hole Diameter | 0.252 Inches Minimum and 0.282 Inches Maximum | |
| Outside Diameter | 0.745 Inches Minimum and 0.770 Inches Maximum | |
| Overall Height | 0.132 Inches Nominal | |
| Material Document and Classification | AMS 5732 ASSN STD Single Material Response Overall | |
| Material Thickness | 0.022 Inches Minimum and 0.028 Inches Maximum | |
| Minimum Tensile Strength | 160000 Pounds Per Square Inch (Psi) | |
| Recess Angle | 99.0 Degrees Minimum and 103.0 Degrees Maximum | |
| Recess Diameter | 0.507 Inches Minimum and 0.517 Inches Maximum | |
| Style Designator | Finishing | |
| Surface Treatment Document and Classification | QQ-P-35 Fed Spec Single Treatment Response Overall | |
| Surface Treatment | Passivate Overall | |
| Specification/Standard Data | Professional/Industrial Association Standard |
| Additional info | |
|---|---|
| Colors | Chrome |
| Dimensions | |
|---|---|
| Dimensions (W x H x D) | 0.75" x 0.75" x 0.112" Inch |
| Length | 0.75" Inch |
| Weight | 0.002 lb |
| Specifications | |
|---|---|
| 8130-3 Eligible | No |
| ATA Chapter | ATA 51 Standard Practices and Structures |
| Available Conditions | NE / NS |
| Cage Code | 0WTF7 |
| Country of origin | United States of America |
| ECCN / USML | EAR99 |
| FAA Approval Code | STD |
| Hazmat Code | Not Applicable |
| Hazmat(Y/N) | N |
| Material | Corrosion Resistant Steel |
| NSN | 5310-01-109-2201 |
| Schedule B | 8409.10.0040 |
| Total Shelf Life (days) | Not Applicable |
| Type | Washer |
| Units of Measure (UoM) | Each |
| Brand | Monroe Aerospace |
| Color | Chrome |
| Condition status | Depreciated |
| Size | 1/4 - Inch |