Model: 312-031-625

Spring Tension Washer

Special Features:

The calculated load at flat (pmax) is 233.0 lbs. The bolt size is 5/16 or .3125 inches

Properties:

Hole Diameter

0.312 inches

Outside Diameter

0.625 inches

Overall Height

0.048 inches

Material Thickness

0.031 inches

Part Name Assigned By Controlling Agency

Belleville disc spring

Material

Stainless steel

Style Designator

Spring tension

NSN

5310-01-611-7823

Part Number

312-031-625

Description

Washer,spring Tension

CAGE

1A699

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

Part 312-031-625 NSN 5310-01-611-7823

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