Model: WD20751

Spring Tension Washer

Properties:

Hole Diameter

Between 0.260 inches and 0.270 inches

Outside Diameter

Between 0.490 inches and 0.510 inches

Overall Height

Between 0.045 inches and 0.065 inches

Material Thickness

Between 0.009 inches and 0.011 inches

Hardness Rating

35.0 rockwell c

Part Name Assigned By Controlling Agency

Navy special project

Material

Copper alloy

NSN

5310-00-451-0045

Part Number

WD20751

Description

Washer,spring Tension

CAGE

78189

A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.

Part WD20751 NSN 5310-00-451-0045

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15938

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:

194120

UFC:

95100

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7415210000
SITC: 69432
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Copper washers including spring washers not threaded