Model: 4M294-28

Spring Tension Washer

Special Features:

One tab, 0.200 in. W, on each side of center hole

Properties:

Hole Diameter

1.650 inches

Outside Diameter

2.110 inches

Overall Height

0.368 inches

Material Thickness

0.016 inches

Material

Copper alloy 172

Material Specification

Qq-c-533, temper at federal specification single material response

Surface Treatment

Tin

Surface Treatment Specification

Mil-t-10727 military specification single treatment response

Style Designator

Spring tension

NSN

5310-01-030-4918

Part Number

4M294-28

Description

Washer,spring Tension

CAGE

51814

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

Part 4M294-28 NSN 5310-01-030-4918

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:

0.1000lbs

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