Model: 73781CS-1216

Extended Washer Self-locking Nut

Properties:

Thread Class

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)

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.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

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