Model: 3W445

Spring Tension Washer

Properties:

Hole Diameter

Between 0.500 inches and 0.520 inches

Outside Diameter

0.810 inches

Overall Height

Between 0.080 inches and 0.090 inches

Material Thickness

0.015 inches

Hardness Rating

42.0 rockwell c

Part Name Assigned By Controlling Agency

Washer, spring tension

Material

Steel comp 1055

Surface Treatment

Phosphate

NSN

5310-00-686-1830

Part Number

3W445

Description

Washer,spring Tension

CAGE

73682

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

Part 3W445 NSN 5310-00-686-1830

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

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: 7318210000
SITC: 69422
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Spring washers and other lock washers, iron or steel