Model: A448-3-1

Spring Tension Washer

Special Features:

Recess angle 105 degrees min, 115 degrees max

Properties:

Hole Diameter

Between 0.122 inches and 0.126 inches

Outside Diameter

Between 0.270 inches and 0.300 inches

Material Thickness

0.021 inches

Surface Finish

63.0 microinches all surfaces

Material

Steel comp 302 or steel comp 304

Material Specification

Qq-s-766, cond a federal specification all material responses

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Style Designator

Spring tension

NSN

5310-00-352-0477

Part Number

A448-3-1

Description

Washer,spring Tension

CAGE

86928

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

Part A448-3-1 NSN 5310-00-352-0477

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:

194120

UFC:

95100

LTL:

RATING VARIABLE

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