Model: 310301

Shouldered Washer

Properties:

Hole Diameter

0.141 inches

Outside Diameter

0.267 inches

Material Thickness

0.031 inches

Material

Aluminum alloy 2024

Material Specification

Qq-a-268, t4 federal specification single material response

Surface Treatment

Anodize

Style Designator

Shouldered

NSN

5310-00-865-2559

Part Number

310301

Description

Washer,shouldered

CAGE

39736

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing sleeve; or spacer, sleeve. Excludes insulator, washer and thrust type washers.

Part 310301 NSN 5310-00-865-2559

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15934

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:

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Schedule B and Export

Schedule B: 7616108000
SITC: 69440
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Cotters, cotter-pins, washers and similar articles, of aluminum