Model: 398436-2

Shouldered Washer

Properties:

Hole Diameter

Between 0.171 inches and 0.181 inches

Shoulder Diameter

Between 0.238 inches and 0.248 inches

Outside Diameter

Between 0.432 inches and 0.452 inches

Overall Height

Between 0.069 inches and 0.085 inches

Shoulder Height

Between 0.022 inches and 0.032 inches

Part Name Assigned By Controlling Agency

Navy special project

Material

Plastic polyamide

Material Specification

L-p-410 federal specification single material response

Style Designator

Shouldered

NSN

5310-01-406-5504

Part Number

398436-2

Description

Washer,shouldered

CAGE

00752

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 398436-2 NSN 5310-01-406-5504

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:

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

Freight Class: Gaskets,washers & other seals