Model: FFB575TYPE1GRADE1

Machine Bolt

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.500 inches
Fastener Length
0.500 inches
Head Style
Square
Head Height
Between 0.156 inches and 0.188 inches
Width Between Flats
Between 0.362 inches and 0.375 inches
Thread Diameter
0.250 inches
Features Provided
Unfinished head
Thready Qty Per Inch (tpi)
20
Min. Tensile Strength (psi)
55000 pounds per square inch
Hardness Rating
95.0 rockwell b
Material
Steel
Material Specification
Ff-b-575, gr 1 federal specification single material response
Surface Treatment
Zinc
Surface Treatment Specification
Qq-z-325, type 2, cl 3 federal specification single treatment response
Thread Series Designator
Unc
Nondefinitive Specification/std Data
1 type and 1 grade
NSN
5306-00-655-7477
Part Number
FFB575TYPE1GRADE1
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 FFB575TYPE1GRADE1 NSN 5306-00-655-7477

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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