Model: 742577-1

Internal Wrenching Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.247 inches
Fastener Length
Between 0.449 inches and 0.459 inches
Head Diameter
0.320 inches
Head Height
0.161 inches
Extended Washer Diameter
0.500 inches
Extended Washer Thickness
0.060 inches
Hole Diameter
Between 0.044 inches and 0.049 inches
First Diameter From Head
Between 0.196 inches and 0.206 inches
Second Diameter From Head
Between 0.118 inches and 0.120 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.063 inches and 0.078 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
Between 0.449 inches and 0.459 inches
Internal Drive Style
Hexagon
Thread Diameter
0.250 inches
Width Across Flats
Between 0.156 inches and 0.158 inches
Hole Quantity
2
Hole Type
Drilled
Thready Qty Per Inch (tpi)
28
Hardness Rating
30.0 rockwell c and 45.0 rockwell c
Hole Configuration Style
Round internal hexagon
Externally Relieved Body Diameter Quantity
2
Material
Steel comp 410
Material Specification
Qq-s-763 federal specification single material response
Thread Series Designator
Unjf
NSN
5306-01-215-5175
Part Number
742577-1
Description
Bolt,internal Wrenching
CAGE
73030

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 742577-1 NSN 5306-01-215-5175

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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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:
574
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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