Model: MC12578

Spring Tension Washer

Properties:

Hole Diameter

Between 0.280 inches and 0.320 inches

Outside Diameter

Between 0.330 inches and 0.370 inches

Overall Height

Between 0.025 inches and 0.045 inches

Material Thickness

Between 0.005 inches and 0.007 inches

Features Provided

Casehardened

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp 301 or steel comp 302 or steel comp 316

Material Specification

Qq-s-766 federal specification single material response

Surface Treatment

Passivate

NSN

5310-01-081-7859

Part Number

MC12578

Description

Washer,spring Tension

CAGE

76050

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

Part MC12578 NSN 5310-01-081-7859

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: 7318210000
SITC: 69422
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Spring washers and other lock washers, iron or steel