NAS1580A4R6

Close Tolerance Bolt

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Description:

Fastener Length: 25/32", Thread: 1/4-28, Thread Length: 3/8

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NAS1580A4R6 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.403 inches maximum
Fastener Length:
0.763 inches minimum and 0.793 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.464 inches minimum and 0.506 inches maximum
Grip Diameter:
0.2485 inches minimum and 0.2495 inches maximum
Internal Drive Style:
Torque-set ribbed
Thread Diameter:
0.250 inches
Grip Length:
0.365 inches minimum and 0.385 inches maximum
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
Surface Finish:
32.0 microinches grip
Surface Finish:
32.0 microinches threads
Material:
Steel comp 4140 overall or steel comp 4340 overall or steel comp 8735 overall
Material Specification:
Mil-s-5626 mil spec 1st material response overall or mil-s-5000 mil spec 2nd material response overall or mil-s-6049 mil spec 3rd material response overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416,type 2,class 2 fed spec single treatment response overall
Thread Series Designator:
Unjf
Specification Data:
80205-nas1580 professional/industrial association standard
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 25/32

Additional Information

SKU / Model: NAS1580A4R6
NSN: 5305-01-164-1130
FSC: Screws / 5305
Product Series: NAS1580A4R
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 20
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS1580A4R6_Military-Fasteners-com.pdf
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More NAS1580A4R close tolerance bolts

NAS1580A4R9

Fastener Length: 31/32", Thread: 1/4-28, Thread Length: 27/64"

NAS1580A4R8

Fastener Length: 29/32", Thread: 1/4-28, Thread Length: 27/64"

NAS1580A4R7

Fastener Length: 27/32", Thread: 1/4-28, Thread Length: 27/64"

NAS1580A4R5

Fastener Length: 23/32in., Thread: 1/4-28, Thread Length: 27/64in.

NAS1580A4R4

Fastener Length: 21/32in., Thread: 1/4-28, Thread Length: 3/8in.

NAS1580A4R34D

Fastener Length: 3/8", Thread: 1/4-28, Thread Length: 3/8"

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As normal with Military Fasteners for many years, no issues. I order the parts needed and they send them. Just fair prices and good service.

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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

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