Model: NS202902-4-3

Plate Self-locking Nut

Special Features:

O/a height 0.745 in. Max

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Counterbore Diameter
0.270 inches nut
Lubrication
Dry film lubricant
Mounting Hole Diameter
Between 0.098 inches and 0.103 inches
Nut Style
Plate (floating)
Nut Length
0.967 inches
Nut Height
0.422 inches
Plate Thickness
Between 0.055 inches and 0.060 inches
Plate Width
Between 0.615 inches and 0.635 inches
Nut Counterbore Depth
0.187 inches nut
Nut Mounting Provision
Dimpled holes
Mounting Hole Arrangement Style
2 holes
Distance From Aperture Center To Mounting Hole Center
Between 0.371 inches and 0.381 inches
Center To Center Distance Between Mounting Holes Along Length
Between 0.750 inches and 0.754 inches
End Application
B-2 aircraft
Thread Series
Unjf
Features Provided
Floating nut
Thready Qty Per Inch (tpi)
28
Thread Size
0.250 inches
Material
Iron alloy 660 nut
Material
Iron alloy 660 shell
Material
Iron alloy 660 washer
Material
Rubber butadiene-acrylonitrile class nbr seal
Material Specification
Ams 5525 assn standard single material response nut or ams 5732 assn standard single material response nut or ams 5737 assn standard single material response nut
Material Specification
Ams 5525 assn standard single material response shell or ams 5732 assn standard single material response shell or ams 5737 assn standard single material response shell
Material Specification
Ams 5525 assn standard single material response washer or ams 5732 assn standard single material response washer or ams 5737 assn standard single material response washer
Material Specification
Mil-r-6855, class 1, grade 60 (225 degrees f) military specification single material response seal
Surface Treatment
Passivate nut
Surface Treatment
Passivate shell
Surface Treatment
Passivate washer
Surface Treatment Specification
Qq-p-35 federal specification single treatment response nut
Surface Treatment Specification
Qq-p-35 federal specification single treatment response shell
Surface Treatment Specification
Qq-p-35 federal specification single treatment response washer
NSN
5310-01-533-2970
Part Number
NS202902-4-3
Description
Nut,self-locking,plate
CAGE
80539

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 NS202902-4-3 NSN 5310-01-533-2970

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:
FW
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:
Equipment for Aircraft

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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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