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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Customer Reviews

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I can always count on Military Fasteners to give me the best selection of aircraft parts and supplies. Also always get fast shipping, and appreciate the USPS option that is much less expensive than the overnight shippers for us located in Southern California. Thank you for making it easier to keep our general aviation and experimental aircraft flying!

5.0

As usual Military Fasteners did a great job getting the items I ordered to me here in Arizona. My last order had one item on Back Order but was sent in a timely manner direct from the manufacturer. Great Company, great service.

5.0

As always, goods exactly as ordered, packaged well, shipped promptly...doesnt get any better. Thank you.

5.0

I can say that Military Fasteners was able to deliver the part to me very quickly. I live in a very remote area in the Tennessee mountains and typically have to wait up to two weeks to receive deliveries. Sometimes, the delivery guys cannot find my house at all, and they have to leave my packages at the local general store. But with Military Fasteners, my packages always find my front door step and in great condition. This package arrived nearly a week earlier than expected, and that was over the New Years holiday! Great work, Military Fasteners, on your delivery service. Thanks!

4.0