Model: 6442

Ribbed Neck Bolt

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 1.109 inches and 1.141 inches
Fastener Length
Between 2.234 inches and 2.266 inches
Head Style
Flat chamfer
Head Diameter
Between 0.750 inches and 0.812 inches
Head Height
Between 0.229 inches and 0.239 inches
Rib Major Diameter
Between 0.534 inches and 0.539 inches
Rib Length
Between 0.921 inches and 0.953 inches
Thread Diameter
0.500 inches
Thready Qty Per Inch (tpi)
20
Hardness Rating
28.0 rockwell c and 36.0 rockwell c
Material
Steel comp 4140
Material Specification
66 federal standard single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type2, class3 federal specification all treatment responses
Thread Series Designator
Unf
NSN
5306-00-966-9553
Part Number
6442
Description
Bolt,ribbed Neck
CAGE
52793

A headed externally threaded fastener whose threaded portion is of one nominal diameter with a series of longitudinal ribs, splines or serrations on all or part of the unthreaded portion. See also bolt, ribbed shoulder.

Part 6442 NSN 5306-00-966-9553

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15940
FIIG:
A003B0
Concept No.:
App. Key:
BT
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:
139170
UFC:
69790
LTL:
125.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
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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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