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.:
1
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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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

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