Model: 440370-28

Internal Wrenching Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.270 inches and 0.290 inches
Fastener Length
Between 1.460 inches and 1.500 inches
Head Style
Flat chamfer
Head Diameter
Between 0.262 inches and 0.270 inches
Head Height
Between 0.159 inches and 0.164 inches
First Diameter From Head
Between 0.115 inches and 0.125 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
1.220 inches
Internal Drive Style
Hexagon
Thread Diameter
0.164 inches
Width Across Flats
Between 0.140 inches and 0.142 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
160000 pounds per square inch
Hardness Rating
36.0 rockwell c and 45.0 rockwell c
Minimum Yield Strength
130000 pounds per square inch
Material
Steel
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416 ty2 cl3 federal specification all treatment responses
Thread Series Designator
Unc
NSN
5306-01-462-6497
Part Number
440370-28
Description
Bolt,internal Wrenching
CAGE
3B150

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 440370-28 NSN 5306-01-462-6497

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:
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:
573
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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