Model: 21AX811

Single Ball Sea Self-locking Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Locking Feature
Prevailing torque with nonmetallic insert
Nut Style
Single ball seat, hexagon
Ball Seat Radius
Between 0.179 inches and 0.209 inches
Nut Height
Between 0.968 inches and 0.999 inches
Width Across Flats
Between 1.239 inches and 1.252 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
14
Hardness Rating
Between 26.0 rockwell c and 34.0 rockwell c
Thread Size
0.875 inches
Part Name Assigned By Controlling Agency
Nut, hex lock-high tensile fine thread
Material
Plastic polyamide locking insert
NSN
5310-01-551-9953
Part Number
21AX811
Description
Nut,self-locking,single Ball Sea
CAGE
89619

Part 21AX811 NSN 5310-01-551-9953

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29732
FIIG:
A021A0
Concept No.:
1
App. Key:
CB
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:
A
ESD:
A
MMAC:
CRITL:
X

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