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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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

Everything arrived quickly and correctly. I'm a longtime customer and find your service to be always top of the line.

5.0

Local Guide·"Nice online shop

5.0

Props to my saleslady (whose name I have sadly forgotten) for her can do attitude. Fast and efficient yet friendly and thorough. The items arrived nicely padded with brown paper. Im so happy youve stopped using those hard-to-dispose-of styrofoam peanuts. Fast to ship reasonable prices. Just excellent all around!

4.0