NAS1640-4

Lock Washer

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Description:

NAS1640-4 Lock Washer

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NAS1640-4 Price:
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$0.26 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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I am a retired AME/Pilot. I have been restoring a 1946 Globe Swift and have relied on the support and expertise provided by your sales staff. My experience has been very positive. In return, I buy everything I can from Military Fasteners. You are my preferred supplier. Thank you.

5.0

Very good service, as usual. Order was complete and correct. It is easy to order on your website and the deliveries are always in the specified time.

5.0

Good service, fast response on orders Good prices

5.0

Another good experience with Military Fasteners, and our Sales Rep, Dan Hunter. We needed hardware for an older aircraft model, and Dan's expertise was exceptional. He quickly identified fasteners, even for parts with unclear descriptions, and provided invaluable technical assistance. The supporting data was spot-on, verified by our technicians. Despite finding slightly lower prices elsewhere, the unmatched service and expertise from Military Fasteners, particularly Dan, make them our preferred choice. Our order was delivered ahead of schedule. Highly recommend MilFast for top-notch service and technical support!

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