Model: 73781CS-1216

Extended Washer Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
1.130 inches
Overall Height
0.813 inches
Nut Style
Slotted hexagon
Washer Thickness
0.100 inches
End Application
C-17a aircraft
Width Across Flats
Between 0.868 inches and 0.880 inches
Thread Series
Unjf
Thready Qty Per Inch (tpi)
16
Hardness Rating
46.0 rockwell c
Thread Size
0.750 inches
Material
Iron alloy 660
Material Specification
Ams5525 assn standard single material response or ams5732 assn standard single material response or ams5737 assn standard single material response
Surface Treatment
Silver
Surface Treatment Specification
Ams2410 assn standard single treatment response or ams2411 assn standard single treatment response
NSN
5310-01-341-8788
Part Number
73781CS-1216
Description
Nut,self-locking,extended Washer
CAGE
56878

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 73781CS-1216 NSN 5310-01-341-8788

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:
S
ESD:
ESD:
MMAC:
BA
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:
LVL_A:
E
LVL_B:
B

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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