Model: NAS1020-46A

Hexagon Head Cap Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
1.846 inches
Fastener Length
Between 4.706 inches and 4.736 inches
Head Style
Hexagon
Head Height
Between 0.640 inches and 0.672 inches
Width Between Flats
Between 1.801 inches and 1.815 inches
Thread Diameter
1.250 inches
Thready Qty Per Inch (tpi)
12
Min. Tensile Strength (psi)
140000 pounds per square inch
Material
Iron alloy 660
Material Specification
Ams5735 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-s-5002 assn standard single treatment response
Thread Series Designator
Unjf
Specification Data
80205-nas1020 professional/industrial association standard
NSN
5305-01-300-2073
Part Number
NAS1020-46A
Description
Screw,cap,hexagon Head
CAGE
80205

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

Part NAS1020-46A NSN 5305-01-300-2073

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
18257
FIIG:
A003B0
Concept No.:
App. Key:
SB
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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