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

Fastener Length: 7/16in., Thread: 4-40

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