MS9490-21

Military Standard Bolt

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Description:

Fastener Length: 1-7/16", Thread: 1/4-28, Thread Length: 51/64"

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MS9490-21 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.750 inches minimum and 0.810 inches maximum
Fastener Length:
1.438 inches nominal
Head Style:
Hexagon
Head Height:
0.156 inches nominal
Width Between Flats:
0.430 inches minimum and 0.439 inches maximum
Thread Diameter:
0.250 inches
Grip Length:
0.628 inches minimum and 0.688 inches maximum
Features Provided:
Finished head
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
130000 pounds per square inch
Hardness Rating:
248.0 brinell standard minimum overall and 341.0 brinell standard maximum overall
Surface Finish:
32.0 microinches bearing surface of head
Surface Finish:
32.0 microinches grip
Surface Finish:
32.0 microinches threads
Material:
Iron alloy 660 overall
Material Specification:
Ams 5731 assn std single material response overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Iron
Length 1-7/16

Additional Information

SKU / Model: MS949021
NSN: 5306-00-434-7551
FSC: Bolts / 5306
Product Series: MS9490
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5 EA
Schedule B: 7318.15.8085
ECCN: 9A991
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS9490-21_Military-Fasteners-com.pdf
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More MS9490 machine bolts

MS9490-56

Fastener Length: 5-1/2", Thread: 1/4-28, Thread Length: 13/16"

MS9490-54

Fastener Length: 5-1/4in., Thread: 1/4-28, Thread Length: 51/64in.

MS9490-40

Fastener Length: 3-1/2", Hole Diameter: 5/64", Thread: 1/4-28, Thread Length: 13/16"

MS9490-38

Fastener Length: 3-1/4", Thread: 1/4-28, Thread Length: 51/64"

MS9490-37

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

MS9490-36

Fastener Length: 3-", Thread: 1/4-C8, Thread Length: 51/64"

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