Model: 431B502-29

Internal Wrenching Bolt

Special Features:

Thread diameter begins at 1.000 inch with taper angle of thread to head 0.004 to 0.006 inches, optional head may be knurled

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
1.620 inches
Fastener Length
3.260 inches
Head Style
Flat chamfer
Head Diameter
Between 1.852 inches and 1.875 inches
Head Height
Between 1.236 inches and 1.250 inches
First Diameter From Head
Between 1.069 inches and 1.074 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
1.640 inches
Internal Drive Style
Hexagon
Thread Diameter
1.000 inches
Width Across Flats
Between 0.875 inches and 0.880 inches
Thready Qty Per Inch (tpi)
8
Criticality Code Justification
Ahym
Externally Relieved Body Diameter Quantity
1
Material
Steel comp 304 or steel comp 316 or steel comp 321
Material Specification
Astm a193 assn standard all material responses
Surface Treatment
Copper
Thread Series Designator
Unc
Reference Number Differentiating Characteristics
As differentiated by tapered threads
NSN
5306-01-181-7472
Part Number
431B502-29
Description
Bolt,internal Wrenching
CAGE
01289

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Part 431B502-29 NSN 5306-01-181-7472

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06666
FIIG:
A003B0
Concept No.:
App. Key:
BM
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:
A
ESD:
ESD:
MMAC:
CRITL:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
3.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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