NAS1189E04P8B

Close Tolerance Screw

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Description:

Fastener Length: 1/2", Thread: 4-40, Thread Length: 29/64

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NAS1189E04P8B Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.374 inches minimum and 0.455 inches maximum
Fastener Length:
0.469 inches minimum and 0.500 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.177 inches minimum and 0.225 inches maximum
Locking Feature:
Patch threads
Internal Drive Style:
Cross recess type 1
Thread Diameter:
0.112 inches
Thready Qty Per Inch (tpi):
40
Min. Tensile Strength (psi):
160000 pounds per square inch
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Surface Finish:
32.0 microinches bearing surface of head
Surface Finish:
32.0 microinches threads
Material:
Iron alloy 660 fastener
Material:
Plastic polyamide locking feature
Material Specification:
Ams5737 assn std single material response fastener
Surface Treatment:
Passivate fastener
Surface Treatment Specification:
Qq-p-35 fed spec single treatment response fastener
Thread Series Designator:
Unjc
Specification Data:
80205-nas1189 professional/industrial association standard
Quick Specs
Thread Size 4
Thread Qty 40
Material Iron
Length 1/2

Additional Information

SKU / Model: NAS1189E04P8B
NSN: 5305-01-278-9631
FSC: Screws / 5305
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5
Schedule B: 7318.15.6080
ECCN: EAR99
National Motor Freight: 156600, Plastic / Rubber Article Viz:
Download PDF Version
NAS1189E04P8B_Military-Fasteners-com.pdf
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NAS1189E04P7B

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Great supplier to work with. Prompt replies to inquiries, accurate information, quick turnaround shipping, personal touch with all communications. Trisha Hawkins has been a great representative for all of our questions and concerns.

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Everything I ordered was delivered quickly, packaged well. In fact, all of my prior orders as well.

5.0

Awesome service. People are friendly, polite and fast to communicate with 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