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,
Download PDF Version
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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Amazingly prompt response! I ordered over 1000 items and couldn't believe it when there was an email waiting the following morning saying the items had been dispatched. Easy to track the package online. By comparison I ordered some items from another supplier 3 months ago and I'm still waiting, with no apologies or communication emanating from them to explain the delay.

5.0

As always, my order was handled with excellence in all areas of customer service, delivery, etc.

5.0

You had what I needed and I had it in 2 days.I always look to military fasteners 1st when I need anything for my airplane.

5.0

We worked with Ramona at Military Fasteners for a few items that we needed right away to complete a job. Ramona processed our order quickly and efficiently and made the experience stress free when it could have been quite challenging. The items came with all the correct documentation too which was also very important to us.

5.0