Model: C7530-4

Spline Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Pilot Length
Between 0.086 inches and 0.111 inches
Lubrication
Dry film lubricant
Nut Style
Spline
Nut Diameter
0.531 inches
Nut Height
0.199 inches
Thread Series
Unjf
Thready Qty Per Inch (tpi)
28
Hardness Rating
Between 38.0 rockwell c and 46.0 rockwell c
Thread Size
0.250 inches
Material
Steel
Material Specification
Aisi 8740 assn standard single material response or ams 6322 assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2, class 2 federal specification single treatment response
NSN
5310-01-050-4255
Part Number
C7530-4
Description
Nut,self-locking,spline
CAGE
81755

A nut having an externally splined sleeve, which holds it in position when forced into a hole of slightly smaller diameter. An integral feature is incorporated for locking.

Part C7530-4 NSN 5310-01-050-4255

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15893
FIIG:
A021A0
Concept No.:
1
App. Key:
CE
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:
WF
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:
095760
UFC:
50130
LTL:
70.0
LCL:
50.0
WCC:
573
TCC:
Z
SHC:
Z
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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