Model: 3138812-1

Spring Tension Washer

Special Features:

Consists of 3 waves with load deflection of 3 to 5 lb. Wt

Properties:

Hole Diameter

0.440 inches

Outside Diameter

0.618 inches

Overall Height

0.040 inches

Material Thickness

0.025 inches

Hardness Rating

Between 471.0 vickers or firth diamond pyramid and 598.0 vickers or firth diamond pyramid

Material

Steel comp 1095

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416 type 2 class 2 federal specification single treatment response

NSN

5310-01-041-7121

Part Number

3138812-1

Description

Washer,spring Tension

CAGE

10001

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

Part 3138812-1 NSN 5310-01-041-7121

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