Model: 531B

Seal Washer

Properties:

Hole Diameter

0.264 inches

Outside Diameter

0.620 inches

Overall Height

Between 0.096 inches and 0.118 inches

Material

Plastic epoxy sealing element

Material

Steel comp 304 body

Style Designator

Concave

NSN

5310-01-412-8595

Part Number

531B

Description

Washer,seal

CAGE

85969

A washer of various shapes having a centrally located hole. It is primarily used as a seat for a bolt or screw to distribute pressure and has a sealing element. It may be used in connection with metallic washers to which it can be bonded.

Part 531B NSN 5310-01-412-8595

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

37917

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: 7318220000
SITC: 69422
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Washers other than lock washers, iron or steel