Model: 3-4819-8-412-52

Spring Tension Washer

Properties:

Hole Diameter

Between 0.176 inches and 0.181 inches

Outside Diameter

Between 0.340 inches and 0.345 inches

Overall Height

Between 0.027 inches and 0.033 inches

Material Thickness

Between 0.010 inches and 0.012 inches

Hardness Rating

Between 350.0 vickers or firth diamond pyramid and 380.0 vickers or firth diamond pyramid

Material

Copper alloy 172

Material Specification

Astm b194, 1/4 hard assn standard single material response

NSN

5310-01-276-3344

Part Number

3-4819-8-412-52

Description

Washer,spring Tension

CAGE

K4340

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

Part 3-4819-8-412-52 NSN 5310-01-276-3344

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

Freight Class: Copper washers including spring washers not threaded