Model: 1957-90

Spring Tension Washer

Properties:

Hole Diameter

Between 0.096 inches and 0.098 inches

Outside Diameter

Between 0.213 inches and 0.223 inches

Overall Height

0.040 inches

Material Thickness

0.0100 inches

Material

Copper alloy 170

Material Specification

Qq-c-533 federal specification single material response

NSN

5310-00-286-3203

Part Number

1957-90

Description

Washer,spring Tension

CAGE

89944

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

Part 1957-90 NSN 5310-00-286-3203

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:

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