Model: 21058-2

Spring Tension Washer

Properties:

Hole Diameter

Between 0.377 inches and 0.383 inches

Outside Diameter

Between 0.603 inches and 0.617 inches

Overall Height

Between 0.018 inches and 0.022 inches

Material Thickness

Between 0.009 inches and 0.011 inches

Surface Finish

32.0 microinches all surfaces

Material

Copper alloy 170

Material Specification

Qq-c-533, temper 1/4 h federal specification single material response

Style Designator

Spring tension

NSN

5310-00-432-5579

Part Number

21058-2

Description

Washer,spring Tension

CAGE

54089

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

Part 21058-2 NSN 5310-00-432-5579

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:

1.0000lbs

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

576

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