Model: 820-4551312-1

Spring Tension Washer

Properties:

Hole Diameter

0.402 inches

Outside Diameter

0.906 inches

Overall Height

0.065 inches

Material Thickness

0.035 inches

Criticality Code Justification

Zzzy

Part Name Assigned By Controlling Agency

Washer, spring tension

Color

Black

Material

Steel

Surface Treatment

Oxide film

Special Test Features

Special quality control testing

Style Designator

Spring tension

Test Data Document

81349-mil-p-23199 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

Reference Number Differentiating Characteristics

As differentiated by material which must conform to ships parts control center specialquality control provisions and certified free from mercury contamination

NSN

5310-00-867-0105

Part Number

820-4551312-1

Description

Washer,spring Tension

CAGE

80064

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

Part 820-4551312-1 NSN 5310-00-867-0105

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