Model: ST3M657C7

Plate Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Counterbore Diameter
0.442 inches nut
Lubrication
Dry film lubricant
Mounting Hole Diameter
Between 0.130 inches and 0.135 inches
Nut Style
Plate
Nut Length
1.602 inches
Nut Height
0.400 inches
Plate Thickness
0.032 inches
Plate Width
0.859 inches
Nut Counterbore Depth
0.062 inches nut
Nut Mounting Provision
Straight holes
Mounting Hole Arrangement Style
2 holes
Distance From Aperture Center To Mounting Hole Center
Between 0.620 inches and 0.630 inches
Center To Center Distance Between Mounting Holes Along Length
Between 1.248 inches and 1.252 inches
Thread Series
Unjf
Features Provided
Floating nut
Thready Qty Per Inch (tpi)
20
Thread Size
0.438 inches
Material
Iron alloy 660
Material Specification
Ams 5525 assn standard 1st material response or ams 5735 assn standard 2nd material response
NSN
5310-01-004-6951
Part Number
ST3M657C7
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 ST3M657C7 NSN 5310-01-004-6951

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:
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:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
013540
UFC:
05680
LTL:
70.0
LCL:
--
WCC:
713
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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