NAS1297-4-18

Bolt

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Description:

Fastener Length: 2-3/64", Thread: 1/4-28, Thread Length: 15/16"

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NAS1297-4-18 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.885 inches minimum and 0.945 inches maximum
Fastener Length:
2.040 inches minimum and 2.050 inches maximum
Head Style:
Hexagon
Head Height:
0.168 inches minimum and 0.188 inches maximum
Width Between Flats:
0.490 inches minimum and 0.502 inches maximum
Shoulder Diameter:
0.309 inches minimum first shoulder and 0.312 inches maximum first shoulder
Shoulder Length:
1.135 inches minimum first shoulder and 1.155 inches maximum first shoulder
Thread Diameter:
0.250 inches
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
125000 pounds per square inch
Hardness Rating:
26.0 rockwell c minimum overall and 32.0 rockwell c maximum overall
Shoulder Shape:
Round first shoulder
Material:
Steel comp 8740 overall or steel comp 4140 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 4130 overall or steel comp 4037 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:
Unjf
Specification Data:
80205-nas1297 professional/industrial association standard
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 2-3/64

Additional Information

SKU / Model: NAS1297418
NSN: 5306-01-310-6003
FSC: Bolts / 5306
Product Series: NAS1297
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1 EA
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS1297-4-18_Military-Fasteners-com.pdf
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