Model: F52866-3-21

Plate Self-locking Nut

Special Features:

Three shims bonded to base of shell, cres, each 0.010 in. Thk; also nut plate protrudes at one end

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Counterbore Diameter
0.195 inches first end and 0.200 inches first end
Lubrication
Dry film lubricant
Mounting Hole Diameter
Between 0.098 inches and 0.103 inches
Nut Style
Plate
Nut Length
1.375 inches
Nut Height
0.750 inches
Plate Thickness
Between 0.023 inches and 0.027 inches
Plate Width
0.865 inches
Nut Counterbore Depth
0.843 inches first end and 0.853 inches first end
Nut Mounting Provision
Straight holes
Mounting Hole Arrangement Style
2 holes
Distance From Aperture Center To Mounting Hole Center
Between 0.557 inches and 0.567 inches
Center To Center Distance Between Mounting Holes Along Length
Between 1.123 inches and 1.127 inches
Tempurature Rating
450.0 degrees fahrenheit
Thread Series
Unjf
Features Provided
Floating nut
Thready Qty Per Inch (tpi)
32
Thread Size
0.190 inches
Material
Iron alloy 660 nut
Material
Iron alloy 660 shell
Material
Steel comp 631 clip or iron alloy 660 clip
Material
Steel comp 631 spring
Material Specification
Ams 5525 assn standard all material responses clip
Material Specification
Ams 5525 assn standard single material response shell
Material Specification
Ams 5731 assn standard single material response nut or ams 5732 assn standard single material response nut or ams 5737 assn standard single material response nut
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
NSN
5310-01-373-3275
Part Number
F52866-3-21
Description
Nut,self-locking,plate
CAGE
15653

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 F52866-3-21 NSN 5310-01-373-3275

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:
A
ESD:
ESD:
MMAC:
SX
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
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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