Model: AS21921-4J

Tube Coupling Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Nut Style
Tube coupling
Nut Height
Between 0.710 inches and 0.730 inches
Width Across Flats
0.562 inches
Length To Shoulder
Between 0.537 inches and 0.557 inches
Smallest Inside Diameter
Between 0.300 inches and 0.305 inches
Thread Series
Unjf
Thready Qty Per Inch (tpi)
20
Thread Size
0.438 inches
Tube Outside Diameter
0.250 inches
Seat Angle
45.00 degrees
Material
Steel comp 304
Surface Treatment
Passivate
NSN
4730-01-578-1785
Part Number
AS21921-4J
Description
Nut,tube Coupling
CAGE
81343

Part AS21921-4J NSN 4730-01-578-1785

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
03859
FIIG:
A021A0
Concept No.:
1
App. Key:
CX
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:
CRITL:
X

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