MS21090-689

Military Standard Self Locking Screw

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Description:

Fastener Length: 1/2", Thread: 3/8-24, Thread Length: 1/2"

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MS21090-689 Datasheet Features and Specification

Thread Class:
2a
Thread Direction:
Right-hand
Thread Length:
0.469 inches minimum and 0.500 inches maximum
Fastener Length:
0.469 inches minimum and 0.500 inches maximum
Head Style:
Pan
Head Diameter:
0.716 inches minimum and 0.740 inches maximum
Head Height:
0.244 inches minimum and 0.261 inches maximum
Locking Feature:
Strip threads
Internal Drive Style:
Cross recess type 1
Thread Diameter:
0.375 inches
Thready Qty Per Inch (tpi):
24
Min. Tensile Strength (psi):
60000 pounds per square inch
Material:
Steel overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416 ty 2 cl 3 fed spec single treatment response overall
Thread Series Designator:
Unf
Nondefinitive Specification/std Data:
3 type and 9c style
Quick Specs
Thread Size 3/8
Thread Qty 24
Material Steel
Length 1/2

Additional Information

SKU / Model: MS21090689
NSN: 5305-00-455-2762
FSC: Screws / 5305
Product Series: MS21090
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5 EA
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS21090-689_Military-Fasteners-com.pdf
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Military Fasteners is the first place I shop for aviation supplies. I have never had a bad experience. Customer support is always exceptional. Thanks

5.0

Very happy with purchase and product. The sales person who assisted me on the phone was excellent. thank you for your help.

5.0

I have been a customer since Fullerton Air Parts (Flo Irwin). That should speak volumes of the service I have received from Military Fasteners. In the early days, I had a variety of planes and was based out of Orange County Airport. At the time, the airport was surrounded by bean fields. I, and some of my friends, would frequently fly into Fullerton airport for lunch, the pick up whatever supplies we needed from Flo. She was a great lady, and I am glad that she passed on such a wonderful legacy. I am certain that she would be very proud of what she started, and proud of you all for building on her meager beginnings.

4.0

My experience in doing business with Military Fasteners through Trisha Hawkins is nothing short of GREAT! She is knowledgeable, attentive to detail and very helpful. This makes my purchase a lot easier and faster lead time. She is an asset to Military Fasteners.

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