NAS1640-4

Lock Washer

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Description:

NAS1640-4 Lock Washer

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NAS1640-4 Price:
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$0.25 Each
Quantity:
Pre-packaged bag qty: 100 ea
* Sold in increments of 100
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NAS1640-4 Datasheet Features and Specification

Hole Diameter:
0.115 inches minimum and 0.124 inches maximum
Outside Diameter:
0.212 inches maximum
Material Thickness:
0.025 inches minimum and 0.031 inches maximum
Hardness Rating:
35.0 rockwell c minimum and 45.0 rockwell c maximum
Material:
Steel corrosion resisting overall
Material Specification:
Fed std 66,crew 300 series mil std single material response overall
Surface Treatment:
Passivate overall
Surface Treatment Specification:
Qq-p-35 fed spec single treatment response overall
Style Designator:
Split helical-right hand
Nondefinitive Specification/std Data:
C class

Additional Information

SKU / Model: NAS16404
NSN: 5310-00-442-6913
FSC: Nuts and Washers / 5310
Product Series: NAS1640
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 100
ECCN: EAR99
National Motor Freight: 194160, Washer Or Gaskets, Iron Or Steel,
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NAS1640-4_Military-Fasteners-com.pdf
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More NAS1640 lock washers

NAS1640-416

5310-00-087-3055 Lock Washer

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Customer Reviews

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Recently my avionics technician and I were installing a component in my aircraft and there were some critical fasteners missing from the manufactures package. This stopped the entire process. I called Military Fasteners after finding the parts on line, and Trisha answered the phone. I told her the situation and that I needed them ASAP. I found the parts gave her the part number and she confirmed they were in stock. This was about 430 in the afternoon just before closing. Trisha was kind and professional got the parts out the door that evening even though it was after the shipping cut off. Saved the day. I can tell you this entire company is represented by Trisha, anything they can do to help you out of a jamb they will absolutely go the extra mile and Trisha is the go to person. I am sure there are others there with her same attitude and professionalism. This is a great resource for all your fasteners needs.

5.0

As usual you guys did an excellent job , fast delivery and all the items in perfect condition. What else could you want. Thank you Military Fasteners.

4.0

Ashili Hansen was instrumental in sorting out a log-in issue I had. Ashili also assisted me in identifying several unique aircraft hardware items. All were in stock, shipped immediately, and at a competitive price!

5.0

I have dealt with Military Fasteners a few times and they have always been extremely helpful and knowledgeable. Ramona has always been wonderful to work with and goes out of her way to help you find what you need. Definitely recommended!

5.0