Model: 657980

Spring Tension Washer

Properties:

Hole Diameter

Between 1.065 inches and 1.075 inches

Outside Diameter

Between 1.312 inches and 1.490 inches

Overall Height

Between 0.065 inches and 0.075 inches

Material Thickness

0.028 inches

Material

Steel comp 631

Material Specification

Ams5529 assn standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Style Designator

Spring tension

NSN

5310-01-391-5142

Part Number

657980

Description

Washer,spring Tension

CAGE

82577

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

Part 657980 NSN 5310-01-391-5142

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:

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