Model: 2057-1591

Internal Wrenching Bolt

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.235 inches and 0.245 inches
Fastener Length
Between 0.455 inches and 0.505 inches
Head Style
Flat chamfer
Head Diameter
Between 0.178 inches and 0.183 inches
Head Height
Between 0.108 inches and 0.112 inches
First Diameter From Head
Between 0.093 inches and 0.117 inches
Second Diameter From Head
Between 0.075 inches and 0.079 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.020 inches and 0.025 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
Between 0.075 inches and 0.079 inches
Internal Drive Style
Hexagon
Thread Diameter
0.112 inches
Width Across Flats
Between 0.078 inches and 0.079 inches
Thready Qty Per Inch (tpi)
40
Hardness Rating
36.0 rockwell c and 42.0 rockwell c
Material
Steel comp 416se
Surface Treatment
Passivate
Thread Series Designator
Unc
NSN
5306-00-685-1934
Part Number
2057-1591
Description
Bolt,internal Wrenching
CAGE
49956

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 2057-1591 NSN 5306-00-685-1934

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
713
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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