Model: ST2803-09

Extended Washer Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.355 inches

Overall Height

0.250 inches

Nut Style

Double hexagon

Washer Thickness

Between 0.045 inches and 0.060 inches

Width Across Flats

0.250 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

24.0 rockwell c

Thread Size

0.190 inches

Material

Iron alloy 660

Material Specification

Ams 5732 assn standard 1st material response or ams 5737 assn standard 2nd material response

Surface Treatment

Passivate

NSN

5310-01-486-1333

Part Number

ST2803-09

Description

Nut,self-locking,extended Washer

CAGE

77445

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 ST2803-09 NSN 5310-01-486-1333

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29729

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:

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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