Model: 28720

Compression Helical Spring

Properties:

Inside Diameter

Between 0.257 inches and 0.267 inches

End Style

E4 spring end, squared and ground both ends

End Style

Spring end, squared and ground both ends

Bore Diameter

Between 0.348 inches and 0.358 inches

Spring Free Length

0.404 inches

Accommodated Rod Diameter

Between 0.233 inches and 0.243 inches

Coil Quantity

4.5

Load Rating

Between 2.000 pounds and 2.500 pounds

Spring Solid Length

0.117 inches

Coil Helix Direction

Right-hand or left-hand

Spring Deflection Rate

9.140 pounds per inch

Spring Free Outside Diameter

Between 0.309 inches and 0.319 inches

Spring Length Under Load

0.158 inches

Material

Steel comp 302

Material Specification

Qq-w-432, cond b federal specification single material response

Surface Treatment

Passivate

Style Designator

Cylindrical

NSN

5360-00-337-4797

Part Number

28720

Description

Spring,helical,compression

CAGE

81982

Part 28720 NSN 5360-00-337-4797

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:

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:

713

TCC:

SHC:

ACC:

Construction Materials

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