Model: 12759-00831

Lock Washer

Properties:

Hole Diameter

Between 0.256 inches and 0.267 inches

Outside Diameter

Between 0.494 inches and 0.510 inches

Material Thickness

Between 0.023 inches and 0.028 inches

End Application

Tow tractor, aircraft; transmission assembly; assembly, drive shaft; tow tractor, a/c (p/n 4jpav, pcc: 6j9)

Part Name Assigned By Controlling Agency

1/4, external tooth lock washer, zinc plated

Material

Steel

Material Specification

Sae j403 1050-1065 assn standard single material response

Surface Treatment

Zinc

Surface Treatment Specification

Astm b633, sc1. Type 111 and bake assn standard single treatment response

Style Designator

Flat external teeth

NSN

5310-01-565-1110

Part Number

12759-00831

Description

Washer,lock

CAGE

0Y3H3

A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces

Part 12759-00831 NSN 5310-01-565-1110

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

14218

FIIG:

A022B0

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:

194160

UFC:

55210

LTL:

50.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7318210000
SITC: 69422
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Spring washers and other lock washers, iron or steel