Model: MIL-S-63540/3

Self-locking Stud

Properties:

Thread Class
2a
Thread Direction
Right-hand nut thread
Thread Length
0.375 inches
Head Diameter
0.199 inches
Head Length
Between 0.082 inches and 0.083 inches
Locking Feature
Head distortions
Overall Length
0.563 inches
Distance Across Flats
Between 0.235 inches and 0.265 inches
Thready Qty Per Inch (tpi)
32
Thread Size
0.138 inches
Material
Steel comp 303 and steel comp 303se
Material Specification
Astm a380 assn standard all material responses
Surface Treatment
Passivate
Style Designator
Self-locking
Thread Series Designator
Unc
NSN
5307-01-422-8257
Part Number
MIL-S-63540/3
Description
Stud,self-locking
CAGE
81349

Part MIL-S-63540/3 NSN 5307-01-422-8257

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
27783
FIIG:
A051A0
Concept No.:
App. Key:
D
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:
SX
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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