Model: 08M31

Spring Tension Washer

Properties:

Hole Diameter

Between 0.162 inches and 0.182 inches

Outside Diameter

Between 0.396 inches and 0.416 inches

Overall Height

Between 0.030 inches and 0.050 inches

Material Thickness

Between 0.021 inches and 0.041 inches

Hardness Rating

Between 47.0 rockwell c and 50.0 rockwell c

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp 1095

Material Specification

Sae assn standard single material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, type 2, cl 2 federal specification single treatment response

Style Designator

Spring tension

NSN

5310-00-959-6881

Part Number

08M31

Description

Washer,spring Tension

CAGE

23650

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

Part 08M31 NSN 5310-00-959-6881

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