NAS1578A5R31

Close Tolerance Bolt

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Description:

Fastener Length: 2-29/64", Thread: 1/4-24, Thread Length: 1/2

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NAS1578A5R31 Datasheet Features and Specification

Fastener Length:
Between 2.424 inches and 2.454 inches
Grip Diameter:
Between 0.311 inches and 0.312 inches
Grip Length:
Between 1.928 inches and 1.948 inches
Head Diameter:
Between 0.597 inches and 0.612 inches
Head Height:
Between 0.176 inches and 0.183 inches
Head Style:
Pan
Internal Drive Style:
Offset cruciform (torque set)
Material:
Steel comp 4140 or steel comp 4340 or steel comp e4340 or steel comp 8740
Material Specification:
Mil-s-5626 military specification 1st material response or ams6415 assn standard 2nd material response or mil-s-5000 military specification 3rd material response or mil-s-6049 military specification 4th material response
Thread Diameter:
0.312 inches
Surface Treatment:
Cadmium
Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.501 inches
Thread Qty Per Inch (tpi):
24
Thread Series Designator:
Unjf (fine thread with external controlled root radius)
Quick Specs
Thread Size 1/4
Thread Qty 24
Thread Series UNJF
Thread Class 3A
Material Steel

Additional Information

SKU / Model: NAS1578A5R31
NSN: 5305-01-501-6620
FSC: Screws / 5305
Product Series: NAS1578A5R
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1
Schedule B: 7318.15.8085
ECCN: EAR99
Download PDF Version
NAS1578A5R31_Military-Fasteners-com.pdf
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I always receive my shipments from Military Fasteners quickly without having to follow up and track down shipments. West Coast shipments arrive usually the next day via UPS ground, making it an effective choice. Thank you for excellent service.

4.0

Ive been buying aircraft parts and supplies from Military Fasteners for 3 years as Ive built four different homebuilt aircraft. I have ALWAYS been perfectly satisfied with all facets of the process. Parts are almost always shipped the same day as I order them, even if I order in the afternoon. Im usually always able to find what i need on the website, and if not, I can call and be helped by someone who knows what he or she is doing. Your people make me feel like they really care about me. Prices are fair. I wish I could run my company as well as you run yours!

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Buying parts from Military Fasteners couldnt be easier. If I need special help I make a phone call. I can usually do it all online and get super fast service.

4.0

The products sent allowed the repair to be completed in a timely manner. Thank you for Military Fasteners being there and having parts available to allow our vintage aircraft to continue flight.

5.0