Model: A0312-4

Shouldered Washer

Properties:

Hole Diameter

Between 0.113 inches and 0.119 inches

Shoulder Diameter

Between 0.250 inches and 0.260 inches

Outside Diameter

Between 0.330 inches and 0.350 inches

Shoulder Height

Between 0.045 inches and 0.055 inches

Material Thickness

0.106 inches

Material

Plastic phenolic

Style Designator

Shouldered

NSN

5310-00-243-9597

Part Number

A0312-4

Description

Washer,shouldered

CAGE

08125

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 A0312-4 NSN 5310-00-243-9597

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: 3926904500
SITC: 89399
End Use: Other industrial supplies
NAICS: 339991
USDA: 1

Freight Class: Gaskets,washers & other seals