Model: ST3M493C4M

Plate Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Counterbore Diameter
0.315 inches nut
Lubrication
Dry film lubricant
Overall Height
0.765 inches
Mounting Hole Diameter
Between 0.098 inches and 0.113 inches
Nut Style
Plate
Nut Length
1.296 inches
Nut Height
Between 0.450 inches and 0.687 inches
Plate Thickness
Between 0.030 inches and 0.050 inches
Plate Width
0.658 inches
Nut Counterbore Depth
0.100 inches nut
Nut Mounting Provision
Straight holes
Mounting Hole Arrangement Style
2 holes
Distance From Aperture Center To Mounting Hole Center
Between 0.495 inches and 0.505 inches
Center To Center Distance Between Mounting Holes Along Length
Between 0.998 inches and 1.002 inches
Tempurature Rating
Between -65.0 degrees fahrenheit and 225.0 degrees fahrenheit
Thread Series
Unjf
Features Provided
Floating nut
Thready Qty Per Inch (tpi)
28
Hardness Rating
Between 55.0 shore durometer a and 65.0 shore durometer a
Thread Size
0.250 inches
Material
Iron alloy 660 nut
Material Specification
Ams5735 assn standard single material response nut
Material Specification
Mil-r-6855, class 1 grade 60 military specification single material response seal
Material Specification
Mil-s-5059 military specification all material responses shell
Material Specification
Mil-s-5059 military specification all material responses washer
Surface Treatment
Passivate shell
Surface Treatment
Passivate washer
Specification Data
76301-st3-493 manufacturers standard
NSN
5310-00-285-9055
Part Number
ST3M493C4M
Description
Nut,self-locking,plate
CAGE
76301

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

Part ST3M493C4M NSN 5310-00-285-9055

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05280
FIIG:
A021A0
Concept No.:
1
App. Key:
BZ
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:
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:
M
SPI No.:
SPI Rev.:
SPC Mkg:
ZZ
LVL_A:
Z
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
000000
UFC:
00000
LTL:
NO RATING
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318160000
  • SITC: 69421
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Nuts of iron or steel

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