Model: 179662 1/2

Externally Relieved Body Screw

Special Features:

4.500 in. L x 1.000 in. Diameter end with 0.312 in. W x 0.188 in. D x 4.000 in. L keyway; nut included-dwg no. 179496 1/4

Properties:

Thread Direction
Left-hand
Thread Length
6.500 inches
Fastener Length
21.750 inches
Head Height
1.000 inches
First Diameter From Head
1.490 inches
Second Diameter From Head
2.000 inches
Third Diameter From Head
1.730 inches
Fourth Diameter From Head
2.000 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
2.505 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
10.255 inches
Distance From Largest Bearing Surface Of Head To End Of Third Diameter
11.005 inches
Distance From Largest Bearing Surface Of Head To End Of Fourth Diameter
17.505 inches
Internal Drive Style
W/o internal drive
Thread Diameter
2.000 inches
Nonstandard Thread Pitch Diameter
+1.8402/+1.8637 inches
Thready Qty Per Inch (tpi)
4
Externally Relieved Body Diameter Quantity
4
Material
Steel
Thread Series Designator
Acme
NSN
5305-01-124-2713
Part Number
179662 1/2
Description
Screw,externally Relieved Body
CAGE
56848

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also bolt, externally relieved body and bolt, internal wrenching.

Part 179662 1/2 NSN 5305-01-124-2713

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01852
FIIG:
A003B0
Concept No.:
App. Key:
SE
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

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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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