Model: WS256-4-7-20A

Locked In Stud

Properties:

Thread Class
3a nut thread
Thread Class
3a stud thread
Thread Direction
Right-hand nut thread
Thread Direction
Right-hand stud thread
Thread Length
0.040 inches stud thread and 0.050 inches stud thread
Thread Length
0.552 inches nut thread and 0.572 inches nut thread
Locking Feature
Ring, lock keyed
Shoulder Length
Between 0.040 inches and 0.050 inches
Overall Length
1.812 inches
Distance From Shoulder Portion To Nut End
Between 1.235 inches and 1.265 inches
Thready Qty Per Inch (tpi)
16 stud thread
Thready Qty Per Inch (tpi)
24 nut thread
Thread Size
0.312 inches nut thread
Thread Size
0.375 inches stud thread
Surface Finish
125.0 microinches
Part Name Assigned By Controlling Agency
Stud, locked in
Material
Steel comp e4340 or steel comp 4340
Material Specification
Mil-s-5000 military specification all material responses
Surface Treatment
Passivate
Surface Treatment Specification
Mil-s-5002 military specification single treatment response
Style Designator
Locked in
Thread Series Designator
Unc stud thread
Thread Series Designator
Unf nut thread
NSN
5307-01-010-6996
Part Number
WS256-4-7-20A
Description
Stud,locked In
CAGE
01556

Part WS256-4-7-20A NSN 5307-01-010-6996

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16012
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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093470
UFC:
48940
LTL:
70.0
LCL:
70.0
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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