Model: 73781CM-820

Extended Washer Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
0.770 inches
Lubrication
Dry film lubricant
Overall Height
Between 0.548 inches and 0.578 inches
Nut Style
Slotted hexagon
Washer Thickness
0.070 inches
End Application
Pacer special
Width Across Flats
Between 0.554 inches and 0.566 inches
Tempurature Rating
1800.0 degrees fahrenheit
Thread Series
Unjf
Thready Qty Per Inch (tpi)
20
Thread Size
0.500 inches
Material
Iron alloy 660
Material Specification
Ams5732 assn standard single material response
NSN
5310-01-281-8548
Part Number
73781CM-820
Description
Nut,self-locking,extended Washer
CAGE

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part 73781CM-820 NSN 5310-01-281-8548

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29730
FIIG:
A021A0
Concept No.:
1
App. Key:
BT
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:
LE
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
095190
UFC:
49790
LTL:
70.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
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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