Model: 191999

Hex Castellated Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Any acceptable
Nut Style
Castellated, hexagon
Nut Height
0.312 inches
Width Across Flats
Between 0.428 inches and 0.438 inches
Tempurature Rating
Not rated
Thread Series
Unf
Thready Qty Per Inch (tpi)
28
Hardness Rating
Not rated
Thread Size
0.250 inches
Bearing Surface Type
Flat
Surface Treatment
Cadmium or zinc
NSN
5310-01-031-6798
Part Number
191999
Description
Nut,self-locking,castellated,hex
CAGE
21450

Part 191999 NSN 5310-01-031-6798

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29725
FIIG:
A021A0
Concept No.:
1
App. Key:
BK
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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