Model: 66564-.250-20

Self-locking Stud
Description:

2a nut thread thread class, right-hand nut thread , 0.620 inches nut thread thread length, 0.380 inches head diameter, self-clinching head locking feature.

Properties:

Thread Class
2a nut thread
Thread Direction
Right-hand nut thread
Thread Length
0.620 inches nut thread and 0.630 inches nut thread
Head Diameter
Between 0.380 inches and 0.384 inches
Head Length
Between 0.231 inches and 0.241 inches
Locking Feature
Self-clinching head
Overall Length
Between 0.854 inches and 0.864 inches
Distance Across Flats
Between 0.433 inches and 0.443 inches
Thready Qty Per Inch (tpi)
20 nut thread
Thread Size
0.250 inches nut thread
Material
Steel comp 303
Material Specification
Aisi assn standard 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
5307-00-003-9530
Part Number
66564-.250-20
Description
Stud,self-locking
CAGE
51506

Part 66564-.250-20 NSN 5307-00-003-9530

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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