Model: 553987

Machine Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.255 inches and 0.335 inches
Fastener Length
Between 0.615 inches and 0.635 inches
Head Style
Hexagon
Head Height
Between 0.080 inches and 0.100 inches
Width Between Flats
Between 0.430 inches and 0.439 inches
Shank Unthreaded Hole Diameter
0.065 inches first hole and 0.072 inches first hole
Thread Diameter
0.250 inches
Grip Length
Between 0.300 inches and 0.360 inches
Features Provided
Finished head
Thready Qty Per Inch (tpi)
28
Hardness Rating
30.0 rockwell c and 38.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
0.500 inches first hole and 0.520 inches first hole
Surface Finish
125.0 microinches top of head
Surface Finish
32.0 microinches threads
Surface Finish
63.0 microinches bearing surface of head
Surface Finish
63.0 microinches grip
Material
Stainless steel
Material Specification
Ams 5616 assn standard single material response
Thread Series Designator
Unjf
NSN
5306-00-891-2004
Part Number
553987
Description
Bolt,machine
CAGE
77445

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 553987 NSN 5306-00-891-2004

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
10.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
LVL_A:
LVL_B:

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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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