NAS1790C4R3P

Close Tolerance Bolt

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Description:

Fastener Length: 39/64", Thread: 1/4-28, Thread Length: 27/64

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NAS1790C4R3P Datasheet Features and Specification

Countersink Angle:
Between 99.0 degrees and 101.0 degrees
Fastener Length:
0.612 inches
Head Diameter:
0.464 inches
Head Style:
Flat countersunk
Internal Drive Style:
Torque set
Thread Diameter:
0.250 inches
Screw Material:
Iron alloy 660
Screw Material Specification:
Ams5731 assn standard single material response or ams5732 assn standard single material response or ams5737 assn standard single material response or ams5853 assn standard single material response
Screw Surface Treatment:
Cadmium
Screw Surface Treatment Specification:
Class2 federal specification single treatment response type ii qq-p-416
Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.425 inches
Thread Qty Per Inch (tpi):
28
Thread Series Designator:
Unjf (fine thread with external controlled root radius)
Quick Specs
Thread Size 1/4
Thread Qty 28
Thread Series UNJF
Thread Class 3A
Material Iron

Additional Information

SKU / Model: NAS1790C4R3P
NSN: 5305-01-543-2021
FSC: Screws / 5305
Product Series: NAS1790C4R
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 25
Schedule B: 7318.15.8085
ECCN: EAR99
Download PDF Version
NAS1790C4R3P_Military-Fasteners-com.pdf
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I called the customer service line just before Air Venture at Oshkosh to find out if they would have the parts I needed at their booth. The service rep on the phone was very helpful and was able to check the inventory that was taken to Oshkosh.I was told that the parts would not be available but could be shipped from the warehouse without delay. I ordered a full set of intake seals for a Continental 085 on the spot and they arrived in a few days. I am very happy with the service provided, and will be ordering more parts soon! Thank you Larry

5.0

Called Military Fasteners for assistance to determine pricing for some material. Ashleigh S. was very nice to work with. Her attitude and happy approach was great. She provided guidance along with a quote for future reference!! Thank you!

5.0

As always, doing business with you is a pleasure!!

5.0

I have built an airplane with parts from Military Fasteners. In the last years I have only had one issue involving warranty problems and that was resolved by the factory. Good service and quality parts/availability are very good at Military Fasteners.

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