Model: KFN522DL5DL

Single Ball Sea Self-locking Nut

Special Features:

With matching washer

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
Between 0.580 inches and 0.590 inches
Lubrication
Dry film lubricant
Overall Height
0.430 inches
Ball Seat Radius
0.313 inches
Washer Thickness
Between 0.135 inches and 0.145 inches
End Application
B-1b aircraft
Width Across Flats
Between 0.367 inches and 0.376 inches
Tempurature Rating
Not rated
Thread Series
Unjf
Thready Qty Per Inch (tpi)
24
Hardness Rating
Not rated
Thread Size
0.3125 inches
Material
Steel comp 305 nut or steel comp 304 nutsteel comp 630 washer
Material Specification
Ams 5686 assn standard 1st material response nut or ams 5697 assn standard 2nd material response nut or ams 5639 assn standard 2nd material response nutams 5643 assn standard single material response washer
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
NSN
5310-01-342-7253
Part Number
KFN522DL5DL
Description
Nut,self-locking,single Ball Sea
CAGE
15653

A nut having one convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member. See also nut (1), self-locking, cone seat, hexagon.

Part KFN522DL5DL NSN 5310-01-342-7253

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29732
FIIG:
A021A0
Concept No.:
1
App. Key:
CB
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:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
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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