Model: C9757-4-2

Plate Self-locking Nut

Special Features:

Color code yellow

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Counterbore Diameter
0.280 inches nut
Lubrication
Dry film lubricant
Mounting Hole Diameter
Between 0.098 inches and 0.103 inches
Nut Style
Plate
Nut Length
0.967 inches
Nut Height
0.745 inches
Plate Thickness
0.055 inches
Plate Width
Between 0.615 inches and 0.635 inches
Nut Counterbore Depth
0.125 inches nut
Nut Mounting Provision
Straight 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
Tempurature Rating
Between -80.0 degrees fahrenheit and 375.0 degrees fahrenheit
Thread Series
Unjf
Features Provided
Floating nut
Thready Qty Per Inch (tpi)
28
Thread Size
0.250 inches
Material
Iron alloy 660 shell
Material
Rubber fluorosilicone class fq seal
Material
Steel comp 1117 washer
Material
Steel comp 4130 nut or steel comp 1050 nut
Material Specification
Ams 5525 assn standard single material response shell
Material Specification
Astm a576 assn standard single material response washer
Material Specification
Mil-r-25988 military specification single material response seal
Material Specification
Mil-s-18729 military specification 1st material response nut or ams 5085 assn standard 2nd material response nut
Surface Treatment
Cadmium washer and chromate washer
Surface Treatment
Cadmium nut
Surface Treatment
Passivate shell
Surface Treatment Specification
Qq-p-35 federal specification single treatment response shell
Surface Treatment Specification
Qq-p-416, type 1, cl 2 federal specification single treatment response nut
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response washer
NSN
5310-01-302-9469
Part Number
C9757-4-2
Description
Nut,self-locking,plate
CAGE
81755

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 C9757-4-2 NSN 5310-01-302-9469

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

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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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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