Model: NCS4-2-18

Self-locking Stud

Properties:

Thread Class
2a nut thread
Thread Direction
Right-hand nut thread
Thread Length
0.547 inches nut thread and 0.577 inches nut thread
Thread Length
0.547 inches and 0.577 inches nut thread
Head Diameter
Between 0.197 inches and 0.201 inches
Head Length
Between 0.053 inches and 0.063 inches
Locking Feature
Self-clinching head
Overall Length
Between 0.600 inches and 0.640 inches
Distance Across Flats
0.250 inches
Thready Qty Per Inch (tpi)
40 nut thread
Thread Size
0.112 inches nut thread
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp 305
Material Specification
Qq-s-764 federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-f-14072, e300 military specification single treatment response
Style Designator
Self-locking
Thread Series Designator
Unc nut thread
NSN
5307-00-138-6465
Part Number
NCS4-2-18
Description
Stud,self-locking
CAGE
57227

Part NCS4-2-18 NSN 5307-00-138-6465

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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