Model: 6440

Ribbed Shoulder Bolt

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 1.109 inches and 1.141 inches
Fastener Length
Between 1.859 inches and 1.891 inches
Head Style
Flat chamfer
Head Diameter
Between 0.812 inches and 0.874 inches
Head Height
Between 0.229 inches and 0.239 inches
Shoulder Diameter
0.534 inches first shoulder and 0.539 inches first shoulder
Shoulder Length
0.495 inches first shoulder
Thread Diameter
0.500 inches
Thready Qty Per Inch (tpi)
20
Hardness Rating
28.0 rockwell c and 36.0 rockwell c
Shoulder Shape
Ribbed first shoulder
Material
Steel comp 4140
Material Specification
Sae assn standard single material response
Surface Treatment
Cadmium and chromate
Thread Series Designator
Unf
NSN
5306-00-237-8296
Part Number
6440
Description
Bolt,ribbed Shoulder
CAGE
52793

An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also bolt, ribbed neck.

Part 6440 NSN 5306-00-237-8296

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16014
FIIG:
A003B0
Concept No.:
App. Key:
BU
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:
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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