Model: 72531-3F-24B

Socket Head Cap Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
1.500 inches
Fastener Length
1.500 inches
Head Style
Flat chamfer
Head Diameter
Between 0.307 inches and 0.312 inches
Head Height
Between 0.092 inches and 0.098 inches
Internal Drive Style
Hexagon
Thread Diameter
0.190 inches
Width Across Flats
0.0938 inches
Thready Qty Per Inch (tpi)
32
Hardness Rating
38.0 rockwell c and 45.0 rockwell c
Color
Black
Material
Steel
Material Specification
Astma574 assn standard single material response
Surface Treatment
Oxide
Surface Treatment Specification
Mil-c-13924, cl 1 military specification single treatment response
Thread Series Designator
Unrf
NSN
5305-01-332-5203
Part Number
72531-3F-24B
Description
Screw,cap,socket Head
CAGE
56878

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.

Part 72531-3F-24B NSN 5305-01-332-5203

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16282
FIIG:
A003B0
Concept No.:
App. Key:
SC
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment

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