Model: 20520-H-SS-4.00-12

Shouldered Stud

Properties:

Thread Class
2a nut thread
Thread Class
2a stud thread
Thread Direction
Right-hand nut thread
Thread Direction
Right-hand stud thread
Thread Length
0.292 inches stud thread and 0.332 inches stud thread
Thread Length
0.480 inches nut thread and 0.520 inches nut thread
Shoulder Length
3.188 inches
Overall Length
Between 3.970 inches and 4.030 inches
Distance Across Flats
0.312 inches
Thready Qty Per Inch (tpi)
32 nut thread
Thready Qty Per Inch (tpi)
32 stud thread
Thread Size
0.190 inches nut thread
Thread Size
0.190 inches stud thread
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp 303
Material Specification
Astm a582 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Astm a380 assn standard single treatment response
Style Designator
Shouldered
Thread Series Designator
Unf nut thread
Thread Series Designator
Unf stud thread
NSN
5307-01-321-3657
Part Number
20520-H-SS-4.00-12
Description
Stud,shouldered
CAGE
51506

Part 20520-H-SS-4.00-12 NSN 5307-01-321-3657

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15946
FIIG:
A051A0
Concept No.:
App. Key:
C
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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
575
TCC:
Z
SHC:
9
ACC:
Construction Materials

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