Model: NAS149-72

Internal Wrenching Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.860 inches and 0.890 inches
Fastener Length
Between 4.485 inches and 4.515 inches
Head Style
Bevel-conical
Head Diameter
Between 0.927 inches and 0.938 inches
Head Height
0.539 inches
Internal Drive Style
Hexagon
Thread Diameter
0.5625 inches
Width Across Flats
Between 0.5005 inches and 0.5035 inches
Thready Qty Per Inch (tpi)
18
Min. Tensile Strength (psi)
160000 pounds per square inch
Material
Steel comp 4340 or steel comp 8740 or steel comp 6150
Surface Treatment
Cadmium
Thread Series Designator
Unc
NSN
5306-00-282-4348
Part Number
NAS149-72
Description
Bolt,internal Wrenching
CAGE
80205

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 NAS149-72 NSN 5306-00-282-4348

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

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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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