Model: 331R721

Compression Helical Spring

Properties:

Inside Diameter

0.119 inches

End Style

E4 spring end, squared and ground both ends

Spring Free Length

0.398 inches

Coil Quantity

8 1/2

Spring Solid Length

0.238 inches

Coil Helix Direction

Right-hand or left-hand

Spring Deflection Rate

40.920 pounds per inch

Spring Free Outside Diameter

0.175 inches

Material

Steel comp 631

Material Specification

Ams 5678, comp 17-7ph assn standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

Eps4, rex chainbelt inc mfr ref single treatment response

Style Designator

Cylindrical

NSN

5360-01-310-9532

Part Number

331R721

Description

Spring,helical,compression

CAGE

98939

Part 331R721 NSN 5360-01-310-9532

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

04226

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

178020

UFC:

87470

LTL:

70.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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