Model: C7983-4

Plate Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Lubrication
Dry film lubricant
Mounting Hole Diameter
Between 0.098 inches and 0.103 inches
Nut Style
Plate
Nut Length
Between 0.790 inches and 0.824 inches
Nut Height
Between 0.496 inches and 0.536 inches
Plate Thickness
Between 0.020 inches and 0.030 inches
Plate Width
Between 0.535 inches and 0.565 inches
Removable Nut Manufacturer Code
29372
Nut Counterbore Depth
0.215 inches base and 0.245 inches base
Nut Mounting Provision
Straight holes
Mounting Hole Arrangement Style
2 holes
Distance From Aperture Center To Mounting Hole Center
Between 0.342 inches and 0.344 inches
Center To Center Distance Between Mounting Holes Along Length
Between 0.685 inches and 0.689 inches
Removable Nut Manufacturer Part Number
Ca21021-1
Thread Series
Unf
Features Provided
Floating nut
Thready Qty Per Inch (tpi)
28
Thread Size
0.250 inches
Material
Steel comp 8740 nut or steel comp 4140 nut
Material
Stainless steel shell
Material Specification
Ams5528, 17-7ph assn standard single material response shell
Material Specification
Mil-s-6049 military specification 1st material response nut or mil-s-5626 military specification 2nd material response nut
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 2, class 2 federal specification single treatment response nut
NSN
5310-01-054-0840
Part Number
C7983-4
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 C7983-4 NSN 5310-01-054-0840

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:
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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