NAS1604-3R

Screw

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Description:

Fastener Length: 43/64", Thread: 1/4-28, Thread Length: 31/64"

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NAS1604-3R Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.444 inches minimum and 0.494 inches maximum
Fastener Length:
0.642 inches minimum and 0.672 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.464 inches minimum and 0.507 inches maximum
Shoulder Diameter:
0.2797 inches minimum first shoulder and 0.2807 inches maximum first shoulder
Shoulder Length:
0.178 inches minimum first shoulder and 0.198 inches maximum first shoulder
Internal Drive Style:
Cross recess type 1
Thread Diameter:
0.250 inches
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Hardness Rating:
36.0 rockwell c minimum overall and 40.0 rockwell c maximum overall
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Shoulder Shape:
Round first shoulder
Material:
Steel comp e4340 overall or steel comp 4340 overall or steel comp 8740 overall or steel comp 8735 overall or steel comp 6150 overall or steel comp 4140 overall or steel comp 4037 overall or steel comp 4130 overall
Material Specification:
Mil-s-5000 mil spec 1st material response overall or mil-s-6049 mil spec 1st material response overall or mil-s-6098 mil spec 2nd material response overall or mil-s-8503 mil spec 3rd material response overall or mil-s-5626 mil spec 4th material response overall or ams 6300 assn std 5th material response overall or mil-s-6758 mil spec 6th material response 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
Specification Data:
80205-nas1604 professional/industrial association standard
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 43/64

Additional Information

SKU / Model: NAS16043R
NSN: 5305-00-838-0902
FSC: Screws / 5305
Product Series: NAS1604
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5 EA
Schedule B: 7318.15.6080
ECCN: 9A991
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS1604-3R_Military-Fasteners-com.pdf
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