Model: 640

Extension Helical Spring

Properties:

Inside Diameter

0.294 inches

End Style

Short loop both ends

Spring Free Length

3.500 inches

Design Type

Closed

Coil Helix Direction

Right-hand or left-hand

Spring Deflection Rate

21.000 pounds per inch

Spring Free Outside Diameter

0.438 inches

Hook Radius

0.147 inches both ends

Material

Steel

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1, class 2 federal specification single treatment response

Style Designator

Cylindrical

NSN

5360-00-442-0423

Part Number

640

Description

Spring,helical,extension

CAGE

99832

Part 640 NSN 5360-00-442-0423

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

04227

FIIG:

A02900

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:

178020

UFC:

87470

LTL:

70.0

LCL:

WCC:

579

TCC:

SHC:

ACC:

Construction Materials

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