NAS1790-4R6

Machine Bolt

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Description:

Fastener Length: 11/16", Hole Diameter: 5/64", Thread: 1/4-28, Thread Length: 27/64

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NAS1790-4R6 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.425 inches nominal
Fastener Length:
0.679 inches minimum and 0.699 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.464 inches minimum and 0.506 inches maximum
Hole Diameter:
0.076 inches minimum and 0.086 inches maximum
Grip Diameter:
0.2485 inches minimum and 0.2495 inches maximum
Thread Diameter:
0.250 inches
Grip Length:
0.365 inches minimum and 0.385 inches maximum
Hole Quantity:
1
Hole Type:
Drilled
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Hole Configuration Style:
Round
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned By Controlling Agency:
Bolt, 100 deg flush head 160,000 psi uts
Material:
Steel comp 4140 overall or steel comp 4340 overall or steel comp e4340 overall or steel comp 8740 overall
Material Specification:
Mil-s-5626 mil spec single material response overall or ams6415 assn std 2nd material response overall or mil-s-5000 mil spec 3rd material response overall or mil-s-60494 mil spec 4th material response overall
Surface Treatment:
Cadmium overall
Surface Treatment Specification:
Qq-p-416, ty ii, cl 2 fed spec single treatment response overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 11/16

Additional Information

SKU / Model: NAS17904R6
NSN: 5306-01-495-1099
FSC: Bolts / 5306
Product Series: NAS1790
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 25
Schedule B: 7318.15.8085
ECCN: EAR99
Download PDF Version
NAS1790-4R6_Military-Fasteners-com.pdf
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NAS1790-5R8

Fastener Length: 63/64", Thread: 1/4-24, Thread Length: 31/64"

NAS1790-5R12

Fastener Length: 25/64in., Hole Diameter: 5/64in., Thread: 5/16-28, Thread Length: 15/32in.

NAS1790-5R11D

Fastener Length: 25/64", Hole Diameter: 5/64", Thread: 5/16-28, Thread Length: 15/32"

NAS1790-4R9

Fastener Length: 63/64", Thread: 1/4-28, Thread Length: 27/64"

NAS1790-4R8

Fastener Length: 11/16", Hole Diameter: 5/64", Thread: 1/4-28, Thread Length: 27/64"

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Recently my avionics technician and I were installing a component in my aircraft and there were some critical fasteners missing from the manufactures package. This stopped the entire process. I called Military Fasteners after finding the parts on line, and Trisha answered the phone. I told her the situation and that I needed them ASAP. I found the parts gave her the part number and she confirmed they were in stock. This was about 430 in the afternoon just before closing. Trisha was kind and professional got the parts out the door that evening even though it was after the shipping cut off. Saved the day. I can tell you this entire company is represented by Trisha, anything they can do to help you out of a jamb they will absolutely go the extra mile and Trisha is the go to person. I am sure there are others there with her same attitude and professionalism. This is a great resource for all your fasteners needs.

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