Model: H39938-5

Extended Washer Self-locking Nut

Special Features:

Removed two points on wrenching configuration 180 degrees apart, 10-point nut; finish is esnalube 382

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
0.475 inches
Overall Height
Between 0.460 inches and 0.475 inches
Nut Style
Double hexagon
Washer Thickness
Between 0.050 inches and 0.070 inches
End Application
F118 engine qualified
Width Across Flats
0.375 inches
Thread Series
Unjf
Thready Qty Per Inch (tpi)
24
Hardness Rating
48.0 rockwell c
Thread Size
0.3125 inches
Material
Iron alloy 660
Material Specification
Ams 5735, a-286 assn standard 1st material response or ams 5737, a-286 assn standard 2nd material response
NSN
5310-01-182-6271
Part Number
H39938-5
Description
Nut,self-locking,extended Washer
CAGE
15653

A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part H39938-5 NSN 5310-01-182-6271

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29729
FIIG:
A021A0
Concept No.:
1
App. Key:
BS
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:
JF
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:
194160
UFC:
55210
LTL:
50.0
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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