Model: 993339-3

Spring Tension Washer

Properties:

Hole Diameter

Between 0.380 inches and 0.390 inches

Outside Diameter

Between 0.490 inches and 0.510 inches

Overall Height

Between 0.035 inches and 0.065 inches

Material Thickness

0.010 inches

End Application

4920-01-209-5053

Hardness Rating

Between 80.4 rockwell superficial 15-n and 83.0 rockwell superficial 15-n

Heat Treatment

Quenched and tempered

Material

Steel

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

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

NSN

5310-00-490-4791

Part Number

993339-3

Description

Washer,spring Tension

CAGE

82577

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

Part 993339-3 NSN 5310-00-490-4791

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:

0.1000lbs

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