NAS1640-416

Lock Washer

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Description:

NAS1640-416 Lock Washer

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NAS1640-416 Datasheet Features and Specification

Hole Diameter:
0.255 inches minimum and 0.263 inches maximum
Outside Diameter:
0.489 inches nominal
Material Thickness:
0.062 inches nominal
Hardness Rating:
35.0 rockwell c minimum and 43.0 rockwell c maximum
Material:
Steel comp 420 overall
Material Specification:
66 fed std all material responses overall
Surface Treatment:
Passivate overall
Surface Treatment Specification:
Qq-p-35 fed spec single treatment response overall
Style Designator:
Split helical-right hand

Additional Information

SKU / Model: NAS1640416
NSN: 5310-00-087-3055
FSC: Nuts and Washers / 5310
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
NAS1640-416_Military-Fasteners-com.pdf
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Great service and lead time. Ships to Canada as well.

5.0

I placed this order late at 4:15 over the phone, 15 minutes past the cut off time.(Which rarely happens) It was critical for us to get the sparkplugs as a customer had called me and scheduled to bring his plane in the next day to have all his plugs replaced. My sales agent said she would personally go and pull the product so it would ship that day, and she did what she said. She saved me the embarrassment of telling my customer I forgot to order his parts on time and making him reschedule a maintenance visit. I am thankful you have people like her who really care about the customer and want to put in the extra effort for customer service. In my aircraft maintenance business I purchase everything I can first from Military Fasteners before I go looking for other venders. I use Military Fasteners because of the great customer service, free shipping (which is one day ground), large selection on hardware and materials, and competitive prices. I am a loyal customer and I order 2-3+ times a week. Thank you for the great service that your people provide at Military Fasteners.

5.0

Received the ELT Battery on time and at a price that I expected. I use Military Fasteners for all my aviation part and accessories needs.

5.0

Site is very user friendly. No problems incurred.

5.0