Model: A448-3-4

Spring Tension Washer

Properties:

Hole Diameter

Between 0.230 inches and 0.270 inches

Outside Diameter

Between 0.412 inches and 0.440 inches

Material

Copper

Material Specification

Astmb 152 assn standard single material response

Surface Treatment

Tin

Surface Treatment Specification

Mil-t-10727, type 1 military specification single treatment response

Style Designator

Spring tension

NSN

5310-01-380-7951

Part Number

A448-3-4

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 A448-3-4 NSN 5310-01-380-7951

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7415210000
SITC: 69432
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Copper washers including spring washers not threaded