Model: FF-B-575

Machine Bolt

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
1.250 inches
Fastener Length
3.500 inches
Head Style
Square
Head Height
Between 0.308 inches and 0.348 inches
Width Between Flats
Between 0.725 inches and 0.750 inches
Thread Diameter
0.500 inches
Grip Length
2.250 inches
Features Provided
Unfinished head
Thready Qty Per Inch (tpi)
13
Min. Tensile Strength (psi)
55000 pounds per square inch
Hardness Rating
95.0 rockwell b
Material
Steel
Surface Treatment
Zinc
Thread Series Designator
Unc
Nondefinitive Specification/std Data
1 type
NSN
5306-00-226-8951
Part Number
FF-B-575
Description
Bolt,machine
CAGE
81348

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

Part FF-B-575 NSN 5306-00-226-8951

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01847
FIIG:
A003B0
Concept No.:
App. Key:
BR
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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