NSN 5305-01-325-1973
Button Head Socket Screw
About this product
3.500 inches fastener length, knurled no. 1 head style, between 0.550 inches and 0.562 inches head diameter, head height: between 0.368 inches and 0.375 inches .
Manufacturer part number 91251A638 for national stock number 5305013251973.
Datasheet
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Product description
Socket Head Cap Screw NSN 5305-01-325-1973.
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MPN or Model
91251A638
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Schedule B
7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment) -
NMF (National Motor Freight)
093486 - Bolts, Nuts Or Screws, NOI (sub 3) -
Unit Weight (Est.)
2 lb -
Thread Class
2a -
Thread Direction
Right-hand -
Thread Length
1.250 inches -
Fastener Length
3.500 inches -
Head Style
Knurled no. 1 -
Head Diameter
Between 0.550 inches and 0.562 inches -
Head Height
Between 0.368 inches and 0.375 inches -
Internal Drive Style
Hexagon -
Thread Diameter
0.375 inches -
Width Across Flats
0.312 inches -
Thready Qty Per Inch (tpi)
16 -
Min. Tensile Strength (psi)
180000 pounds per square inch -
Hardness Rating
39.0 rockwell c and 45.0 rockwell c -
Color
Black -
Material
Steel -
Material Specification
Sae grade 8 assn standard single material response -
Surface Treatment
Oxide -
Thread Series Designator
Unc
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Socket Head Cap Screw
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.
![Mechanic Bill explains Button Head Socket Screw](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5305-01-325-1973 socket head cap screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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91251A638 | Mcmaster-carr Supply Company |
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